TY - JOUR AU - V. M. Zakalyukin AU - A. N. Kurbatskii TI - Envelope Singularities of Families of Planes in Control Theory JO - Informatics and Automation PY - 2008 SP - 73 EP - 86 VL - 262 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2008_262_a6/ LA - ru ID - TRSPY_2008_262_a6 ER -