TY  - JOUR
AU  - G. D. Stepanov
TI  - Criteria for sign regularity of the Green's function of a two-point boundary value problem
JO  - Doklady Akademii Nauk
PY  - 1977
SP  - 765
EP  - 767
VL  - 234
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1977_234_4_a8/
LA  - ru
ID  - DAN_1977_234_4_a8
ER  -