@article{AIHPC_1989__S6__185_0,
     author = {Clarke, F. H. and Loewen, P. D.},
     title = {Variational problems with lipschitzian minimizers},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {185--209},
     publisher = {Gauthier-Villars},
     volume = {S6},
     year = {1989},
     mrnumber = {1019114},
     zbl = {0677.49006},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_1989__S6__185_0/}
}