World Scientific Publishers Oct 1999 ISBN:981-02-4074-0
Duality theory
T.Tanaka (Part:Joint Work)
the Operations Research Society of Japan May 2000 ISBN:4-930793-02-5
New Frontiers of Decision Making for the Information Technology Era
Yong Shi, Milan Zeleny
World Scientific Publishers May 2000 ISBN:981-02-4299-9
Game Theory and Applications, Volume VIII
L.A.Petrosjan, V.V.Mazalov (Part:Joint Work, Classification of Matrices by means of Envelopes for Bicriteria Matrix Games, M.Higuchi and T.Tanaka, pp.43-52.)
Nova Science Publishers Dec 2002 ISBN:1-59033-373-X