TY  - JOUR
AU  - T. V. Levitina
TI  - The conditions of applicability of an algorithm for solving two-parameter self-adjoint boundary-value problems
JO  - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
PY  - 1991
SP  - 689
EP  - 697
VL  - 31
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZVMMF_1991_31_5_a4/
LA  - ru
ID  - ZVMMF_1991_31_5_a4
ER  -