TY  - JOUR
AU  - I. K. Lifanov
TI  - On two problems posed by Mardeshich
JO  - Doklady Akademii Nauk
PY  - 1965
SP  - 997
EP  - 1000
VL  - 162
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1965_162_5_a7/
LA  - ru
ID  - DAN_1965_162_5_a7
ER  -