TY - JOUR AU - Bereanu, Cristian AU - Mawhin, Jean TI - Existence and multiplicity results for nonlinear second order difference equations with Dirichlet boundary conditions JO - Mathematica Bohemica PY - 2006 SP - 145 EP - 160 VL - 131 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2006.134087/ DO - 10.21136/MB.2006.134087 LA - en ID - 10_21136_MB_2006_134087 ER -