TY  - JOUR
AU  - A. V. Bitsadze
TI  - Mikhail Alekseevich Lavrent'ev (on the seventieth anniversary of his birth)
JO  - Izvestiya. Mathematics 
PY  - 1970
SP  - 1203
EP  - 1206
VL  - 4
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1970_4_6_a0/
LA  - en
ID  - IM2_1970_4_6_a0
ER  -