TY  - JOUR
AU  - V. I. Berdyshev
TI  - An observer and a pair of objects enveloping a set of convex regions
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2022
SP  - 64
EP  - 70
VL  - 28
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TIMM_2022_28_4_a5/
LA  - ru
ID  - TIMM_2022_28_4_a5
ER  -