Measurement-Based Peer-to-Peer Grouping for Networked Virtual Environment. - Hajime Sogawa; Niwat Thepvilojanapong; Hiroki Saito; Kaoru Sezaki; Yoshito Tobe (ICDCS Workshops, 2005)

A Propagation of Virtual Space Information Using a Peer-to-peer Architecture for Massively Multiplayer Online Games. - Shin Ito; Hiroki Saito; Hajime Sogawa; Yoshito Tobe (ICDCS Workshops, 2006)