TY - JOUR AU - Schechter, Martin AU - Zou, Wenming TI - Weak linking theorems and Schrödinger equations with critical Sobolev exponent JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2003 SP - 601 EP - 619 VL - 9 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv:2003029/ DO - 10.1051/cocv:2003029 LA - en ID - COCV_2003__9__601_0 ER -