TY - JOUR AU - Graef, John R. AU - Kong, Lingju AU - Kong, Qingkai AU - Yang, Bo TI - Second order boundary value problems with sign-changing nonlinearities and nonhomogeneous boundary conditions JO - Mathematica Bohemica PY - 2011 SP - 337 EP - 356 VL - 136 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2011.141693/ DO - 10.21136/MB.2011.141693 LA - en ID - 10_21136_MB_2011_141693 ER -