%0 Journal Article %A Vostrý, Zdeněk %T Zero points of impulse characteristic %J Kybernetika %D 1972 %P 12-18 %V 8 %N 1 %U http://geodesic.mathdoc.fr/item/KYB_1972_8_1_a1/ %G en %F KYB_1972_8_1_a1