TY  - JOUR
AU  - Yu. A. Dolgopolov
TI  - The systematic errors of definition of the depth of underground communications

JO  - Doklady Akademii Nauk
PY  - 1986
SP  - 1104
EP  - 1108
VL  - 291
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1986_291_5_a19/
LA  - ru
ID  - DAN_1986_291_5_a19
ER  -