@article{JEMS_1999_1_4_a1,
     author = {Stefan M\"uller and Vladim{\'\i}r \v{S}ver\'ak},
     title = {Convex integration with constraints and applications to phase transitions and partial differential equations},
     journal = {Journal of the European Mathematical Society},
     pages = {393--422},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1999},
     doi = {10.1007/s100970050012},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s100970050012/}
}