TY  - JOUR
AU  - N. P. Erugin
TI  - Nikola{\v\i} Evgrafovi{\v{c}} Ko{\v{c}}in (on the occasion of the 75th anniversary of his birth)
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 1327
EP  - 1331
VL  - 12
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_7_a25/
LA  - ru
ID  - DE_1976_12_7_a25
ER  -