Bradley Lucier and Sudhakar Mamillapalli. Madison, Wisconsin, July 1998. Minneapolis, Minnesota, October 2000. Sowmya Krishnaswamy, Minseok Kwon, Di Ma, Qiuyun Shao, and Yi Zhang. New Orleans, Louisiana, December 2000. Dennis Brylow and Niels Damgaard. business generators, states 187-204. Grenoble, France, April 2002. A Typed Interrupt Calculus, with Di Ma. Oldenburg, Germany, September 2002.