TY  - JOUR
AU  - V. S. Vladimirov
AU  - N. P. Erugin
AU  - Yu. A. Mitropol'skii
AU  - O. S. Parasyuk
TI  - Nikola{\v\i} Nikolaevi{\v{c}} Bogoljubov (on the occasion of his 70th birthday)
JO  - Differencialʹnye uravneniâ
PY  - 1979
SP  - 1347
EP  - 1359
VL  - 15
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1979_15_8_a0/
LA  - ru
ID  - DE_1979_15_8_a0
ER  -