TY  - JOUR
AU  - Zhidkov, Peter E.
TI  - Sufficient conditions for functions to form Riesz bases in $L_2$ and applications to nonlinear boundary-value problems
JO  - Electronic Journal of Differential Equations
PY  - 2001
VL  - 2001
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a37/
LA  - en
ID  - EJDE_2001__2001__a37
ER  -