Robert E. Strom Guruduth Banavar Tushar Deepak Chandra Marc Kaplan Kevan Miller Bodhi Mukherjee Daniel C. Sturman Michael Ward Gryphon: An Information Flow Based Approach to Message Brokering http://arxiv.org/abs/cs.DC/9810019 1998 CoRR cs.DC/9810019 db/journals/corr/corr9810.html#cs-DC-9810019 informal publication