C. Kerer, E. Kirda:
"Concurrent Web Engineering with Contracts";
Talk: ICWE 2004, München, DE; 2004-07-28 - 2004-07-30; in: "4th International Conference on Web Engineering", Springer, (2004), 88 - 92.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04968597