TY  - JOUR
AU  - S. M. Zerkal'
TI  - Determination of non-transparent regions in the Earth by method of computer

JO  - Doklady Akademii Nauk
PY  - 1991
SP  - 330
EP  - 333
VL  - 317
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1991_317_2_a18/
LA  - ru
ID  - DAN_1991_317_2_a18
ER  -