@article{AIHPC_1993__10_3_345_0,
     author = {Bouchitt\'e, Guy and Buttazzo, Giuseppe},
     title = {Relaxation for a class of nonconvex functionals defined on measures},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {345--361},
     publisher = {Gauthier-Villars},
     volume = {10},
     number = {3},
     year = {1993},
     mrnumber = {1230712},
     zbl = {0791.49016},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_1993__10_3_345_0/}
}