@incollection{MSMF_1979__60__161_0,
     author = {Thibault, Lionel},
     title = {Calcul sous-diff\'erentiel et calcul des variations en dimension infinie},
     booktitle = {Analyse non convexe (Pau, 1977)},
     series = {M\'emoires de la Soci\'et\'e Math\'ematique de France},
     pages = {161--175},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {60},
     year = {1979},
     doi = {10.24033/msmf.268},
     mrnumber = {82e:49043},
     zbl = {0422.49023},
     url = {http://www.numdam.org/articles/10.24033/msmf.268/}
}