TY  - JOUR
TI  - Petr Sergeevich Novikov (On the seventieth anniversary of his birth)
JO  - Izvestiya. Mathematics 
PY  - 1971
SP  - 1193
EP  - 1194
VL  - 5
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1971_5_6_a0/
LA  - en
ID  - IM2_1971_5_6_a0
ER  -