Because of health problems, I need to postpone the final stretch of this month's research for a little while. I hope to pick it up again before long, possibly in May. When I do, I'll do some more research and writeups, send out the gifts for contributors, and do a closing assessment of what happened and what's to come in the future.
Meanwhile I want to give you this citation:
S. Conry, K. Kuwabara, V. R. Lesser, R. A. Meyer, 1991, Multistage
Negotiation for Distributed Constraint Satisfaction.