Some stuff by Hyman

http://socserv2.mcmaster.ca/soc/courses/soc4s3/theory/hyman.htm

http://www.labournet.de/diskussion/gewerkschaft/hyman.html


http://www.ilo.org/public/english/bureau/inst/project/network/hyman.htm

http://www.antenna.nl/~waterman/hyman2.html