The von Neumann facet and a global asymptotic stability. - Harutaka Takahashi (Ann. Oper. Res., 1992)

Softening of the mouse zona pellucida during oocyte maturation. - Yoshinobu Murayama; Kenta Yoshida; Harutaka Takahashi; Jinji Mizuno; Kazuyuki Akaishi; Hiroaki Inui (EMBC, 2013)