1. Guidance on Safety Management Systems to meet the requirements of Council Directive 96/82/EC (Seveso II), to be published by the European Commission.
2. J.L. Hawksley, Strategy for Safety Assurance for existing installation handling hazardous substances, WHO World Conference on Chemical Accidents, Rome, 7–10 July, 1987.
3. Safety Management Systems, European Process Safety Centre/IChemE, 1994 (ISBN 0-85295-356-9).
4. J.L. Hawksley, Safety first — a framework for measuring safety performance, The Chemical Engineer, 25 April 1996.
5. Safety Performance Measurement, European Process Safety Centre/IChemE, 1996 (ISBN 0-85295-382-8).