Guy Bouchitté, Irene Fonseca, Giovanni Leoni, Lu\'Isa Mascarenhas. A global method for relaxation in W^1,p and in \rm SBVₚ.
Archive for Rational Mechanics and Analysis, Springer Verlag, 2002, 165 (3), pp.187--242.
〈10.1007/s00205-002-0220-y〉.
〈hal-01283213〉 
