1. A community of futurists and the state of the futures field;Bell;Futures,2002
2. Advancing futures studies: a reply to Michael Marien;Bell;Futures,2002
3. W. Bell, History, purposes, and knowledge, Foundations of Futures Studies, vol. 1, especially Chapter 5, An epistemology for futures studies: from positivism to critical realism, Transaction Publishers (paper), New Brunswick (USA) and London (UK), 2003.
4. Evolution of controversial fields: lessons from the past for futures;Henshel;Futures,1981
5. Futures studies in the 21st century: a reality-based view;Marien;Futures,2002