TY - JOUR AU - Chełmiński, Krzysztof AU - Kałamajska, Agnieszka TI - New convexity conditions in the calculus of variations and compensated compactness theory JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2006 SP - 64 EP - 92 VL - 12 IS - 1 PB - EDP-Sciences UR - http://archive.numdam.org/articles/10.1051/cocv:2005034/ DO - 10.1051/cocv:2005034 LA - en ID - COCV_2006__12_1_64_0 ER -