Yusuke Matsuoka Toshimichi Saito Hiroyuki Torikai Complicated superstable behavior in a piecewise constant circuit with impulsive switching. 2006 conf/iscas/2006 ISCAS https://doi.org/10.1109/ISCAS.2006.1693885 db/conf/iscas/iscas2006.html#MatsuokaST06