Dear friends, I have just finished a paper CASL: From Semantics to Tools containing a general non-technical desciprtion of the Bremen HOL-CASL system, and some general ideas about tools for CASL. The paper is available under http://www.informatik.uni-bremen.de/~till/publications.html Greetings, Till P.S. A new version of the HOL-CASL system will be released soon.