Inter-seminar: Keio University (Shirai seminar), Gakushuin University (Ishikawa-seminar), University of Tokyo (Furusawa seminar) and University of Tsukuba (Kurokawa seminar)
Inter-seminar: Keio (Shirai seminar), Hitotsubash (Ishikawa-seminar), U of Tokyo (Furusawa seminar) and Tsukuba (Kurokawa seminar) Keio (Shirai seminar),
Keio (Shirai seminar), Hitotsubashi (Ishikawa seminar), Tsukuba (Kurokawa seminar) Interseminar