Program Complexity Measure for Software Development Management. - Takeshi Sunohara; Akira Takano; Kenji Uehara; Tsutomu Ohkawa (ICSE, 1981)

Proposal and Verification of a Workflow Coordination Model for Core Business. - Nobuhiro Kataoka; Kiyotaka Kuroda; Tsutomu Ohkawa; Hisao Koizumi; Norio Shiratori (ICPADS, 1998)

Core Business Workflow Model Using Internet. - Nobuhiro Kataoka; Kiyotaka Kuroda; Tsutomu Ohkawa; Hisao Koizumi; Norio Shiratori (ICPP Workshops, 1999)