Variational problems with lipschitzian minimizers
Annales de l'I.H.P. Analyse non linéaire, Tome S6 (1989), pp. 185-209. 
@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://archive.numdam.org/item/AIHPC_1989__S6__185_0/}
}
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Clarke, F. H.; Loewen, P. D. Variational problems with lipschitzian minimizers. Annales de l'I.H.P. Analyse non linéaire, Tome S6 (1989), pp. 185-209. http://archive.numdam.org/item/AIHPC_1989__S6__185_0/

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