TY  - JOUR
AU  - Yu. V. Pokorny
AU  - R. Mustafokulov
TI  - On the positive invertibility of some boundary value problems for a fourth-order equation
JO  - Differencialʹnye uravneniâ
PY  - 1997
SP  - 1358
EP  - 1365
VL  - 33
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1997_33_10_a8/
LA  - ru
ID  - DE_1997_33_10_a8
ER  -