TY  - JOUR
AU  - Ši Čžun-cy
TI  - Asymptotic behavior of the eigenfunctions of Sturm--Liouville's problem calculated by using perturbation theory
JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 1279
EP  - 1282
VL  - 131
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_131_6_a13/
LA  - ru
ID  - DAN_1960_131_6_a13
ER  -