TY  - JOUR
AU  - N. S. Erokhin
TI  - An asymptotic expansion of the solutions of the equation $y^{\mathrm{IV}}+(\lambda+\xi^2)y^{\mathrm{II}}\mu y=0$ 

JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 970
EP  - 980
VL  - 7
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_6_a2/
LA  - ru
ID  - DE_1971_7_6_a2
ER  -