http://www.rfc-editor.org/rfc/rfc1008.txt
RFC 1008: Implementation guide for the ISO Transport Protocol, W. McCoy1987-06-01T23:00:00-00:00This RFC is being distributed to members of the Internet community in order to solicit comments on the Implementors Guide. While this document may not be directly relevant to the research problems of the Internet, it may be of some interest to a number of researchers and implementors.