TY  - JOUR
AU  - P. I. Perlin
TI  - Extension to the three-dimensional case of a method of solving fundamental two-dimensional 

JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 1033
EP  - 1036
VL  - 153
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_153_5_a12/
LA  - ru
ID  - DAN_1963_153_5_a12
ER  -