Items where Year is 1999
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Number of items: 106.
AL-SHAWI, F. A. N., MANGAT, P. S. and HALABI, W. (1999). A simplified design approach to corbels made with high strength concrete. Materials and structures, 32 (222), 579-583.
ALLMARK, P. J. (1999). Should Zelen pre-randomised consent designs be used in some neonatal trials? Journal of medical ethics, 25, 325-329.
AYLOTT, Jill (1999). Preventing rape and sexual assault of people with learning disabilities. British journal of nursing, 8 (13), 871-6.
AYLOTT, Jill (1999). Should children with Down's syndrome have cosmetic surgery? British journal of nursing, 8 (1), 33-8.
BROWN, J, SHEWAN, J, MCDONNELL, A and DAVIES, S (1999). Factors in effectiveness:practice nurses, health promotion and cardiovascular disease. Clinical Effectiveness in Nursing, 3 (2), 58-65.
BEER, Martin, LUCK, Michael, JENNINGS, Nick, PREIST, Chris and SCHROEDER, Michael (1999). Foundations of multi-agent systems. The Knowledge Engineering Review, 12, 307-308.
BENNETT, S J, BUTTON, C, KINGSBURY, D and DAVIDS, K (1999). Manipulating visual informational constraints during practice enhances the acquisition of catching skill in children. Research quarterly for exercise and sport, 70 (3), 220-232.
BENNETT, S J, DAVIDS, K and CRAIG , T (1999). The effect of temporal and informational constraints on one-handed catching performance. Research quarterly for exercise and sport, 70 (2), 206-211.
BENNETT, S J, DAVIDS, Keith and WOODCOCK, J (1999). Structural organization of practice: effects of practicing under different informational constraints on the acquisition of one-handed catching skill. Journal of Motor Behaviour, 31 (1), 3-9.
BEST, David, GOSSOP, M., STEWART, D., MARSDEN, J., LEHMANN, P. and STRANG, J. (1999). Continued heroin use during methadone treatment : relationships between frequency of use and reasons reported for heroin use. Drug and Alcohol Dependence, 53 (3), 191-195.
BEST, David, NOBLE, A., FINCH, E., GOSSOP, M., SIDWELL, C. and STRANG, J. (1999). Accuracy of perceptions of hepatitis B and C status : cross sectional investigation of opiate addicts in treatment. British Medical Journal, 319 (7205), 290-291.
BINGHAM, Paul, PARKER, J.M., SEARLE, T., WILLIAMS, J.M. and FYLES, K. (1999). Redox and clustering of iron in silicate glasses. Journal of Non-Crystalline Solids, 253 (1-3), 203-209.
BREEN, C. (1999). The characterisation and use of polycation-exchanged bentonites. Applied Clay Science, 15 (1-2), 187-219.
BREEN, C., BEJARANO-BRAVO, C. M., MADRID, L., THOMPSON, G. and MANN, B. E. (1999). Na/Pb, Na/Cd and Pb/Cd exchange on a low iron Texas bentonite in the presence of competing H+ ion. Colloids and Surfaces A Physicochemical and Engineering Aspects, 155 (2-3), 211-219.
BREEN, C. and LAST, P. M. (1999). Catalytic transformation of the gases evolved during the thermal decomposition of HDPE using acid-activated and pillared clays. Journal of Materials Chemistry, 9 (3), 813-818.
BREEN, C. and MORONTA, A. (1999). Influence of layer charge on the catalytic activity of mildly acid-activated tetramethylammonium-exchanged bentonites. The Journal of Physical Chemistry B, 103 (27), 5675-5680.
BREEN, C., THOMPSON, G. and WEBB, M. (1999). Preparation, thermal stability and decomposition routes of clay/Triton-X100 composites. Journal of Materials Chemistry, 9 (12), 3159-3165.
CARRE, M. J., BAKER, S. W., NEWELL, A. J. and HAAKE, S. (1999). The dynamic behaviour of cricket balls during impact and variations due to grass and soil type. Sports engineering, 2 (3), 145-160.
CHAPLIN, W. J., CHRISTENSEN-DALSGAARD, J., ELSWORTH, Y., HOWE, R., ISAAK, G. R., LARSEN, R. M., NEW, R., SCHOU, J., THOMPSON, M. J. and TOMCZYK, S. (1999). Rotation of the solar core from BiSON and LOWL frequency observations. Monthl;y notices of the Royal Astronomical Society, 308 (2), 405-414.
CHAPLIN, W. J., ELSWORTH, Y., ISAAK, G. R., MILLER, B. A. and NEW, R. (1999). Skew-symmetric solar p modes in low-l BiSON data. Monthly notices of the Royal Astronomical Society, 308 (2), 424-430.
CHILDS, Charmaine, HARRISON, R. and HODKINSON, C. (1999). Tympanic membrane temperature as a measure of core temperature. Archives of Disease in Childhood, 80 (3), 262-266.
DAVIDS, K, BENNETT, S J, HANDFORD, C and JONES, B (1999). Acquiring coordination in self paced extrinsic timing tasks: a constraints led perspective. International Journal of Sport Psychology, 30 (4), 437-461.
DAVIDS, K, BUTTON, C and BENNETT, S (1999). Modeling human motor systems in nonlinear dynamics: intentionality and discrete movement behaviors. Nonlinear Dynamics, Psychology, and Life Sciences, 3 (1), 3-30.
DAVIDS, K, KINGSBURY, D, GEORGE, K, O'CONNELL, M and STOCK, D (1999). Interacting constraints and the emergence of postural behavior in ACL-deficient subjects. Journal of Motor Behavior, 31 (4), 358-366.
DAVIES, S., MCDONNELL, A., BROWN, J. and SHEWAN, J. (1999). Practice nurses use of evidence-based research. Nursing Times, 95 (4), 57-60.
DHARMADASA, I. M., SAMANTILLEKE, A. P., YOUNG, J., BOYLE, M. H., BACEWICZ, R. and WOLSKA, A. (1999). Electrodeposited p-type and n-type ZnSe layers for light emitting devices and multi-layer tandem solar cells. Journal of Materials Science: Materials in Electronics, 10 (5-6), 441-445.
GHASSEMLOOY, Z. and SAATCHI, R. (1999). Software simulation techniques for teaching communication systems. INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING EDUCATION, 36 (4), 287-297.
GUEST, Christopher and TAYLOR, Peter (1999). Customer oriented public leisure services in the United Kingdom. Managing Leisure, 4 (2), 94-106.
HASSAN, A. K., NABOK, A. V., RAY, A. K., LUCKE, A., SMITH, K., STIRLING, C. J. M. and DAVIS, F. (1999). Thin films of calix-4-resorcinarene deposited by spin coating and Langmuir-Blodgett techniques: determination of film parameters by surface plasmon resonance. Materials Science and Engineering C, 8-9, 251-255.
HOVSEPIAN, P. E., LEWIS, D. B., MUNZ, W. D., LYON, S. B. and TOMLINSON, M. (1999). Combined cathodic arc/unbalanced magnetron grown CrN/NbN superlattice coatings for corrosion resistant applications. Surface and Coatings Technology, 120, 535-541.
HOVSEPIAN, P. E., LEWIS, D. B., MUUNZ, W. D., ROUZAUD, A. and JULIET, P. (1999). Chromium nitride/niobium nitride superlattice coatings deposited by combined cathodic-arc/unbalanced magnetron technique. Surface and Coatings Technology, 116, 727-734.
JOHNSON, N. (1999). From vocational training to education: the development of a no-frontiers education policy for Europe? Education and the law, 11 (3), 199-213.
KHATIB, J. M. and MANGAT, P. S. (1999). Influence of superplasticizer and curing on porosity and pore structure of cement paste. Cement and Concrete Composites, 21 (5-6), 431-437.
LOVELL, S., SHERIDAN, J., HARRIS, J., BEST, David and STRANG, J. (1999). Methadone maintenance clients and the acceptability of supervised consumption of methadone. Journal of Substance Use, 4 (2), 92-97.
MCDONNELL, A (1999). A systematic review to determine the effectiveness of preparatory information in improving the outcomes of adult patients undergoing invasive procedures. Clinical Effectiveness in Nursing, 3 (1), 4-13.
MANGAT, P. and ELGARF, M. S. (1999). Bond characteristics of corroding reinforcement in concrete beams. Materials and structures, 32 (216), 89-97.
MANGAT, P. S. and ELGARF, M. S. (1999). Flexural strength of concrete beams with corroding reinforcement. ACI structural journal, 96 (1), 149-158.
MANGAT, P. S. and ELGARF, M. S. (1999). Strength and serviceability of repaired reinforced concrete beams undergoing reinforcement corrosion. Magazine of concrete research, 51 (2), 97-112.
MANGAT, P. S. and LIMBACHIYA, M. C. (1999). Effect of initial curing on chloride diffusion in concrete repair materials. Cement and Concrete Research, 29 (9), 1475-1485.
MANGAT, P. S. and O'FLAHERTY, F. J. (1999). Serviceability characteristics of flowing repairs to propped and unpropped bridge structures. Materials and structures, 32 (223), 663-672.
MANGAT, P. S. and O'FLAHERTY, F. J. (1999). Long-term performance of high-stiffness repairs in highway structures. Magazine of concrete research, 51 (5), 325-339.
MILLS, S. J., CARE, C. M., NEAL, M. P. and CLEAVER, D. J. (1999). Computer simulation of fractionation in bidisperse liquid crystals. Molecular crystals and liquid crystals science and technology Section A - Molecular crystals and liquid crystals, 330, 1667-1674.
MOYSES, S. and SPELLS, S. J. (1999). Conformationally sensitive infrared vibrations of the syndiotactic polystyrene/ethylbenzene complex. Macromolecules, 32 (8), 2684-2689.
MOYSES, S. and SPELLS, S. J. (1999). Molecular dimensions in the delta and gamma phases of syndiotactic polystyrene, using small angle neutron scattering. Polymer, 40 (12), 3269-3274.
NABOK, A. V., DAVIS, F., HASSAN, A. K., RAY, A. K., MAJEED, R. and GHASSEMLOOY, Z. (1999). Polyelectrolyte self-assembled thin films containing cyclo-tetrachromotropylene for chemical and bio-sensing. Materials Science and Engineering C, 8-9, 123-126.
NABOK, A. V., HASSAN, A. K. and RAY, A. K. (1999). Optical and electrical characterisation of polyelectrolyte self-assembled thin films. Materials Science and Engineering C, 8-9, 505-508.
NABOK, A. V., RAY, A. K., HASSAN, A. K., TITCHMARSH, J. M., DAVIS, F., RICHARDSON, T., STAROVOITOV, A. and BAYLISS, S. (1999). Formation of CdS nanoclusters within LB films of calixarene derivatives and study of their size-quantization. Materials Science and Engineering: C, 8-9, 171-177.
OUDEJANS, R R D, MICHAELS, C F, BAKKER , F C and DAVIDS, K (1999). Shedding some light on catching in the dark: perceptual mechanisms for catching fly balls. Journal of Experimental Psychology: Human Perception and Performance, 25 (2), 531-542.
PACEY, M. N., HAAKE, S. J. and PATTERSON , E. A. (1999). Applications of an automated reflection polariscope using spectral analysis. Proceedings of the SEM annual conference on theoretical, experimental and computational mechanics, Cincinnati, Ohio, 7-9 June 1999, 534-540.
PACEY, M. N., WANG, X. Z., HAAKE, S. J. and PATTERSON, E. A. (1999). The application of evolutionary and maximum entropy algorithms to photoelastic spectral analysis. Experimental mechanics, 39 (4), 265-273.
RAY, A. K., NABOK, A. V., HASSAN, A. K. and COOK, M. J. (1999). Photoconduction in Langmuir-Blodgett films of octasubstituted metal-free phthalocyanine molecules. IEE proceedings. Circuits, devices and systems, 146 (1), 44-48.
RAY, A. K., NABOK, A. V., HASSAN, A. K., SILVER, J., MARSH, P. and RICHARDSON, T. (1999). Optical studies on composite Langmuir-Blodgett films containing ytterbium bis-phthalocyanine. Philosophical Magazine B-Physics of Condensed Matter Statistical Mechanics Electronic Optical and Magnetic Properties, 79 (7), 1005-1019.
RAY, A. K., TRACEY, S. M. and HASSAN, A. K. (1999). Conduction in partially monoclinic films of lead phthalocyanine. Iee Proceedings-Science Measurement and Technology, 146 (4), 205-209.
SAMMON, C., HAJATDOOST, S., EATON, P., MURA, C. and YARWOOD, J. (1999). Materials analysis using confocal Raman microscopy. Macromolecular Symposia, 141, 247-262.
SHIBLI, Simon and GRATTON, Chris (1999). Assessing the public profile of major sports events : a case study of the European Short Course Swimming Championships. International Journal of Sports Marketing and Sponsorship, 1 (3).
SOLTANI, H., BRUCE, C. and FRASER, R. B. (1999). Observational study of maternal anthropometry and fetal insulin. Archives of disease in childhood : fetal and neonatal, 81 (2), F122-F124.
TAYLOR-FIRTH, Alan and LAYCOCK, Elizabeth (1999). Weathering simulation for durability assessment of the in-service performance of construction materials. Quarterly Journal of Engineering Geology and Hydrogeology, 32 (3), 291-302.
THOMPSON, S. P., HALLIDAY, I. and CARE, C. M. (1999). Mesoscopic hydrodynamics of diphasic Lattice Bhatnagar Gross Krook fluid interfaces. Physical Chemistry Chemical Physics, 1 (9), 2183-2190.
TOMLINSON, M., LYON, S. B., HOVSEPIAN, P. E. and MUNZ, W. D. (1999). Corrosion performance of CrN/NbN superlattice coatings deposited by the combined cathodic arc unbalanced magnetron technique. Vacuum, 53 (1-2), 117-121.
VAN DER KAMP, J, BENNETT , S J, SAVELSBERGH, G J P and DAVIDS, K (1999). Timing a one-handed catch. II. Adaptation to telestereoscopic viewing. Experimental Brain Research, 129 (3), 369-377.
WEBB, M., LAST, P. M. and BREEN, C. (1999). Synergic chemical analysis - the coupling of TG with FTIR, MS and GC-MS - 1. The determination of the gases released during the thermal oxidation of a printed circuit board. Thermochimica Acta, 326 (1-2), 151-158.
WHITE, D. M., HALLIDAY, I., CARE, C. M. and STEVENS, A. (1999). Application of the lattice Bhatnagar-Gross-Krook method to the simulation of internal pressure-driven flow. Physica D Nonlinear Phenomena, 129 (1-2), 68-82.
WHITTLE, R. and COOPER, J. (1999). Enforcing the rights and freedoms of disabled people: the role of transnational law (Part II). Mountbatten journal of legal studies, 3 (1), 3-32.
YARWOOD, J., SAMMON, C., MURA, C. and PEREIRA, M. F. (1999). Vibrational spectroscopic studies of the diffusion and perturbation of water in polymeric membranes. Journal of Molecular Liquids, 80 (2-3), 93-115.
YARWOOD, J., SAMMON, C., MURA, C. and PEREIRA, M. F. (1999). Vibrational spectroscopic studies of the diffusion and perturbation of water in polymeric membranes. Journal of Molecular Liquids, 80 (2-3), 93-115.
AL-ABOOD, S A, BENNETT, S J, BURWITZ, L and DAVIDS, K (1999). Visual modelling and discovery learning as constraints on the acquisition of coordination. In: HOSEK, Vaclav, TILINGER, Pavel and BILEK, Lubos, (eds.) Psychology of sport and exercise : enhancing the quality of life : proceedings of the 10th European congress of sport psychology. Prague, Charles University, Faculty of Physical Education and Sport.
ATKINSON, Paul (1999). Work, rest and play: the personalisation of the workspace. In: Proceedings of the 3rd European Academy of Design Conference. Salford, European Academy of Design/Sheffield Hallam University/University of Salford, 26-56.
BEAK, Sam, DAVIDS, Keith and BENNETT, Simon (1999). Perception of affordances of haptic information in children and adults. In: GREALY, Madeleine A. and THOMSON, James A., (eds.) Studies on perception and action. V, tenth International Conference on Perception and Action. Mahwah, N.J., Lawrence Erlbaum Associates, 215-218.
BEER, Martin, BENCH-CAPON, T. J. M. and SIXSMITH, A (1999). The delivery of effective integrated community care with the aid of agents. In: HUI, Lucas Chi-Wong and LEE, Dik Lun, (eds.) Internet Applications, 5th International Computer Science Conference, ICSC'99. Lecture Notes in Computer Science, 1749 (1749). Springer, 393-398.
BEER, Martin, BENCH-CAPON, T. J. M. and SIXSMITH, A. (1999). Dialogue management in a virtual college. In: BENCH-CAPON, Trevor, SODA, Giovanni and TJOA, A. Min, (eds.) Database and Expert Systems Applications, 10th International Conference, DEXA '99. Lecture Notes in Computer Science (1677). Berlin, Springer, 521-530.
BLOOD, Peter, MICHLER, Peter, PEREIRA, Mauro, HOMBURG, Oliver, NERGER, Lars, GUTOWSKI, Juergen, WENISCH, Helmut, HOMMEL, Detlef, ISHIBASHI, Akira and OSINSKI, Marek (1999). Gain characteristics of ZnSe/(Zn,Mg)(S,Se)/(Zn,Mg)(S,Se) quantum well lasers. In: Physics and Simulation of Optoelectronic Devices VII. SPIE, 117-126.
BLOOD, Peter, PEREIRA, Mauro, SCHMIELAU, T., SCHEPE, R., HENNEBERGER, Klaus, ISHIBASHI, Akira and OSINSKI, Marek (1999). T-matrix many-particle theory for low-dimensional semiconductor optics. In: Physics and Simulation of Optoelectronic Devices VII. SPIE, 105-116.
CRITCHER, Chas, PARRY, David and WADDINGTON, Dave (1999). Regulation, restructuring and regeneration in coalfields : three European cases. In: EDWARDS, Paul K and ELGER, Tony, (eds.) The global economy, national states and the regulation of labour. London, Routledge, 87-110.
HAAKE, S. J. (1999). Sports engineering. In: SANDERS, R. H. and GIBSON , B. J., (eds.) ISBS '99 : XVII international symposium on biomechanics in sports. Vol.1: scientific proceedings. International society of biomechanics in sports, 131-135.
HENNEBERGER, K., GÜLDNER, H., MANZKE, G., PENG, Q. Y. and PEREIRA, Mauro (1999). Many-body theory for II–VI semiconductor laser media. In: KRAMER, Bernhard, (ed.) Advances in Solid State Physics. Berlin, Springer Berlin Heidelberg, 61-73.
MAYAGIOTIA, R E, DUNTSTON, S C M and HELLER, Ben (1999). Evaluation of balance during activities of daily living. In: BLANCHARD, Susan M., ECKSTEIN, Eugene C., FOUKE, Janie M., NEREM, Robert M. and YOGANATHAN, Ajit P., (eds.) Proceedings of the first joint BMES/EMBS conference. Piscataway, NJ, IEEE EMB, p. 520.
O'FLAHERTY, F. J. and MANGAT, P. S. (1999). Influence of constituents on the properties of self compacting repair materials. In: 1st International RILEM symposium on self-compacting concrete. RILEM proceedings, 7 (PRO 7). RILEM, 263-274.
VISSER, P. R. S., JONES, D. M., BEER, Martin, BENCH-CAPON, T. J. M., DIAZ, B. M. and SHAVE, M. J. R. (1999). Resolving ontological heterogeneity in the KRAFT Project. In: BENCH-CAPON, Trevor, SODA, Giovanni and TJOA, A. Min, (eds.) Database and Expert Systems Applications, 10th International Conference, DEXA '99. Lecture Notes in Computer Science (1677). Berlin, Springer, 668-677.
WHATLEY, J., BEER, Martin, STANIFORD, G. and SCOWN, P. J. A. (1999). Group project support agents for helping students work online. In: BULLINGER, H. J. and ZIEGLER, J, (eds.) Human-computer interaction: communication, cooperation, and application design Vol.2. CRC, 672-676.
WILKOP, T., YATES, R., RAY, A., HASSAN, A. K. and ALEKSEY, N. (1999). Smart structures for sensing environmental pollution. In: VARADAN, V. K., (ed.) Smart Structures and Materials 1999: Smart Electronics and Mems. Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie), 3673 . SPIE, 327-334.
ZELLWEGER, Christoph (1999). Christoph Zellweger 1990 -1999. Other. UK, Christoph Zellweger .
Conference or Workshop Item
HASSAN, A. K., MOLINA, M. V., RAY, A. K., NABOK, A. V., GHASSEMLOOY, Z., YATES, R. and SAATCHI, R. (1999). Chemical sensors for the detection of organic pollutants. In: Smart Structures and Materials 1999 Conference, Newport Beach, Calif., Mar 01-04, 1999. 318-326.
HIRSCH, Laurence and SAEEDI, M (1999). Modelling exchange using the prisoner’s dilemma and genetic programming. In: Proceedings of the Computer Society of Iran Computing Conference 1999. (Submitted)
MANGAT, Pal and O'FLAHERTY, Fin (1999). Efficacy of different materials and methods of repair in highway bridges. In: Concrete Communication Conference '99: The 9th BCA Annual Conference on Higher Education and the Concrete Industry, Cardiff University, 8-9 July 1999. (Submitted)
MANGAT, Pal and O'FLAHERTY, Fin (1999). Long term performance criteria for concrete repair materials. In: International Congress, Creating with Concrete - Concrete Durability and Repair Technology, University of Dundee., 6-10 September 1999. RILEM Publications SARL, 263 -274. (Unpublished)
NABOK, A. V., RAY, A. K., HASSAN, A. K., YATES, R. and MAJEED, R. (1999). Composite polyelectrolyte self-assembled films for optical bio-sensors. In: Smart Structures and Materials 1999 Conference, Newport Beach, Calif., Mar 01-04, 1999. 230-238.
RUST, C., WHITELEY, G. and WILSON, A. (1999). First make something – principled, creative design as a tool for multi-disciplinary research in clinical engineering. In: Proceedings of 4th Asian Design Conference, Nagaoka, Japan, October 1999.
MERCHANT, Guy (1999). Handa's surprise. Read and respond . Leamington Spa, Scholastic.
MERCHANT, Guy (1999). The snow maze. Read and respond . Leamington Spa, Scholastic.
WILLIAMS, A M, DAVIDS, Keith and WILLIAMS, J G (1999). Visual perception and action in sport. London, Routledge.
MERCHANT, Guy, THOMAS, Huw and COOPER, Kath, eds. (1999). Picture books for the literacy hour : activities for primary teachers. London, David Fulton.
APPLETON, Zoe Brigitte Sophie (1999). The participation of women in urban regeneration : a longitudinal study in Sheffield. Doctoral, Sheffield Hallam University.
BALI, Rajeev Kumar (1999). Successful technology management : cultural and organisational dimensions of MIS implementation in SMEs. Doctoral, Sheffield Hallam University.
CLARK, Anita (1999). Fatigue mechanisms in FV520B, a turbine blade steel. Doctoral, Sheffield Hallam University.
CLAXTON, David B (1999). The measurement of oxygen uptake kinetics in children. Doctoral, Sheffield Hallam University.
CROUCH, David James (1999). Synthesis and molecular properties of zwitterionic adducts of TCNQ and other related compounds. Doctoral, Sheffield Hallam University.
DAWSON, Catherine Elaine (1999). Learning choices: a grounded theory study of adult returners. Doctoral, Sheffield Hallam University.
HALL, Robin (1999). Impact sound insulation of flooring systems with polyurethane foam on concrete floors. Doctoral, Sheffield Hallam University.
HINCHCLIFFE, Jimmy M. (1999). The Financial Services Act : a case study in regulatory capture. Doctoral, Sheffield Hallam University.
JONES, Robert Edward (1999). Bondcoat developments for thermal barrier coatings. Doctoral, Sheffield Hallam University.
MALUSKI, Sophie (1999). Low frequencies sound insulation in dwellings. Doctoral, Sheffield Hallam University.
MONAGHAN, John Michael (1999). The role of nitric oxide in pre-eclampsia. Doctoral, Sheffield Hallam University.
O'KEEFFE, Lisa Ann (1999). The economic and financial effects of the introduction of Super League in Rugby League. Doctoral, Sheffield Hallam University.
RICHARDSON, Timothy Kevin (1999). Environmental integration in infrastructure planning: a Foucauldian discourse analysis of the trans-European transport network. Doctoral, Sheffield Hallam University.
SIMPSON, Julie (1999). The role of chemokines in the pathology of multiple sclerosis and other neuroinflammatory diseases. Doctoral, Sheffield Hallam University.
ZHANG, YanBing (1999). Development of a structured framework for core competence evaluation in the manufacturing and service industries. Doctoral, Sheffield Hallam University.