Mingyu Zhai Guanqun Gu Yuan Yuan Queue Length Based Fair Queueing in Core-Stateless Networks. 193-197 2001 conf/mmns/2001 MMNS http://link.springer.de/link/service/series/0558/bibs/2216/22160193.htm db/conf/mmns/mmns2001.html#ZhaiGY01