Performance and Management of Complex Communication Networks : IFIP TC6 / WG6.3 & WG7.3 International Conference on the Performance and Management of Complex Communication Networks (PMCCN.97) 17.21 November 1997, Tsukuba Science City, Japan - Toshiharu Hasegawa, Hideaki Takagi, Yutaka Takahashi ((IFIP Advances in Information and Communication Technology))