TY  - JOUR
AU  - L. V. Kritskov
TI  - Representation and estimates of root functions of singular differential operators on an interval. I
JO  - Differencialʹnye uravneniâ
PY  - 1992
SP  - 1291
EP  - 1302
VL  - 28
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1992_28_8_a0/
LA  - ru
ID  - DE_1992_28_8_a0
ER  -