@article{COCV_2006__12_1_64_0,
     author = {Che{\l}mi\'nski, Krzysztof and Ka{\l}amajska, Agnieszka},
     title = {New convexity conditions in the calculus of variations and compensated compactness theory},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {64--92},
     publisher = {EDP-Sciences},
     volume = {12},
     number = {1},
     year = {2006},
     doi = {10.1051/cocv:2005034},
     zbl = {1114.49019},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv:2005034/}
}