@article{AIHPC_1997__14_3_339_0,
     author = {Cellina, Arrigo},
     title = {Minimizing a functional depending on $\nabla u$ and on $u$},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {339--352},
     publisher = {Gauthier-Villars},
     volume = {14},
     number = {3},
     year = {1997},
     zbl = {0876.49001},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_1997__14_3_339_0/}
}