1. Abacus Concepts (1992). StatView. Berkeley, Ca, USA: Abacus Concepts,Inc.
2. Arnfalk, P & À Thidell (1992). Miljöarbete inom svensk tillverkningsindustri — Myt eller verklighet? Department of industrial economics, University of Lund, Lund, Sweden. (Environmental work in Swedish manufacturing industry — Myth or reality?)
3. Belz, F &T Dyllick (1996). Umweltmanagement-Barometer 1995/96. Swiss Environmental Barometer (forthcoming)
4. Dieffenbach, JR (1993). Lifecycle Economic Analysis: A Case Study Examination of its Role in Organizational Decision Making. IBIS working paper. Wellesley, Mass., USA: IBIS Associates, Inc.
5. Easterby-Smith,M., R Thorpe &A
Lowe (dy1991). Management Research. An Introduction London, UK: Sage Publications