New Approach for the Introduction of a Computer Aided Tool for Shop Floor Monitoring and Control in SME's. - Bernd E. Hirsch; Alexandra A. Pereira Klen; M. J. Vöge (APMS, 1993)

European Experiences for Improving Production Efficiency in SMEs. - Alexandra A. Pereira Klen; M. J. Vöge; Bernd E. Hirsch (Production Management Methods, 1994)