The final report (10 pages) is available in PostScript↑ format: [ftp://ftp.cs.reading.ac.uk/pub/formal/jpb/procos-wg.ps A ProCoS-WG Working Group Project Final Report:ESPRIT Working Group 8694], Jonathan Bowen (The University of Reading, UK), C.A.R. Hoare↑ (Oxford University, UK), Hans Langmaack (Christian-Albrechts-Universität zu Kiel, Germany), Ernst-Rüdiger Olderog (Universität Oldenburg, Germany) and Anders P. Ravn (Technical University of Denmark), Bulletin of the European Association for Theoretical Computer Science (EATCS), Volume 64, pages 63–72, February 1998. The last major meeting was held 7–9 April 1997, at the University of Reading↑, UK, in conjunction with ZUM'97.