TY  - JOUR
AU  - V. I. Berdyshev
TI  - Differentiation of the concealment function in the case of a convex occluding set
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2013
SP  - 79
EP  - 84
VL  - 19
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/TIMM_2013_19_2_a7/
LA  - ru
ID  - TIMM_2013_19_2_a7
ER  -