Modified Nyquist analysis for PFM-continuous-time hybrid systems. - T. Todo; Takehiro Mori; Yasuaki Kuroe (Int. J. Syst. Sci., 2001)

Stability Estimation of Pfm-type Pulsed Neural Networks. - T. Todo; Takehiro Mori; Yasuaki Kuroe (Int. J. Syst. Sci., 2005)