Hopf Extension Theorem of Measure
Endou, Noboru, Okazaki, Hiroyuki, Shidama, Yasunari
Cell Petri Net Concepts
Jitsukawa, Mitsuru, Kawamoto, Pauline, Shidama, Yasunari, Nakamura, Yatsuka
Embedded Lattice and Properties of Gram Matrix
Futa, Yuichi, Shidama, Yasunari