TY - JOUR AU - A. A. Uspenskii TI - Derivatives by virtue of diffeomorphisms and their applications in control theory and geometrical optics JO - Trudy Instituta matematiki i mehaniki PY - 2015 SP - 252 EP - 266 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMM_2015_21_2_a20/ LA - ru ID - TIMM_2015_21_2_a20 ER -