TY - JOUR AU - Guedda, M. TI - On nonhomogeneous biharmonic equations involving critical Sobolev exponent. JO - Portugaliae Mathematica PY - 1999 PB - Sociedade Portuguesa de Matematica VL - 56 IS - 3 SP - 299 EP - 308 LA - eng KW - mountain pass theorem; concentration compactness principle; Palais-Smale condition UR - http://eudml.org/doc/48362 ER -