TY  - JOUR
AU  - N. I. Akhiezer
AU  - V. A. Marchenko
TI  - Boris Moiseevich Levitan (on his fiftieth birthday)
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1965
SP  - 175
EP  - 182
VL  - 20
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1965_20_3_a10/
LA  - en
ID  - RM_1965_20_3_a10
ER  -