TY - JOUR AU - Sano, Hideki TI - On approximation of stability radius for an infinite-dimensional feedback control system JO - Kybernetika PY - 2016 SP - 824 EP - 835 VL - 52 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14736/kyb-2016-5-0824/ DO - 10.14736/kyb-2016-5-0824 LA - en ID - 10_14736_kyb_2016_5_0824 ER -