TY  - JOUR
AU  - B. I. Bandyrskii
AU  - V. L. Makarov
AU  - O. L. Ukhanev
TI  - Sufficient conditions for the convergence of nonclassical asymptotic expansions for the Sturm--Liouville problem with periodic conditions
JO  - Differencialʹnye uravneniâ
PY  - 1999
SP  - 367
EP  - 378
VL  - 35
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1999_35_3_a10/
LA  - ru
ID  - DE_1999_35_3_a10
ER  -