TY  - JOUR
AU  - N. P. Erugin
TI  - The equations $w''=f(w',w,z)$ with an irrational right-hand side
JO  - Differencialʹnye uravneniâ
PY  - 1980
SP  - 236
EP  - 250
VL  - 16
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1980_16_2_a5/
LA  - ru
ID  - DE_1980_16_2_a5
ER  -