Shih-Hung Wu Von-Wun Soo Making Rational Decisions in N-by-N Negotiation Games with a Trusted Third Party. 47-61 http://link.springer.de/link/service/series/0558/bibs/1733/17330047.htm 1999 conf/prima/1999 PRIMA db/conf/pricai/prima1999.html#WuS99