1. Advanced Topics in Difference Equations;Agarwal,1997
2. Boundary-value problems with non-surjective ϕ-Laplacian and one-side bounded nonlinearity;Bereanu;Adv. Differential Equations,2006
3. C. Bereanu, J. Mawhin, Existence and multiplicity results for periodic solutions of nonlinear difference equations, J. Difference Equ. Appl., in press
4. C. Bereanu, J. Mawhin, Periodic solutions of first order nonlinear difference equations, Rend. Sem. Mat. Univ. Politec. Torino, in press
5. C. Bereanu, J. Mawhin, Periodic solutions of some nonlinear perturbations of the ϕ-Laplacian, in preparation