1. Critical factors in high technology management;Aleksander,1988
2. Keen, P.G.W., Shaping the Future: Business Design Through Information Technology. Harvard Business School Press.
3. Electronic data interchange for product structure data;Meijer;Int. J. Computer-Integr. Mfg.,1989
4. The impact of information technology on organisations in the 1990s;Scott Morton;Siemens Rev.,1989