TY  - JOUR
AU  - A. I. Sherstyuk
TI  - Determination of closed expressions for the perturbation theory corrections to the wave functions of bound states by means of a~Sturm function expansion
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1974
SP  - 224
EP  - 232
VL  - 21
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1974_21_2_a7/
LA  - ru
ID  - TMF_1974_21_2_a7
ER  -