TY  - JOUR
AU  - A. B. Budak
AU  - V. N. Denisov
TI  - Estimation of the closeness of partial sums of expansions in eigenfunctions of a Sturm--Liouville operator with discontinuous coefficients
JO  - Differencialʹnye uravneniâ
PY  - 1992
SP  - 943
EP  - 956
VL  - 28
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1992_28_6_a3/
LA  - ru
ID  - DE_1992_28_6_a3
ER  -