Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{KYB_1975__11_4_a4, author = {Dole\v{z}al, Jaroslav}, title = {Existence of optimal solutions in general discrete systems}, journal = {Kybernetika}, pages = {--312}, publisher = {mathdoc}, volume = {11}, number = {4}, year = {1975}, mrnumber = {0490220}, zbl = {0318.49007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/KYB_1975__11_4_a4/} }
Doležal, Jaroslav. Existence of optimal solutions in general discrete systems. Kybernetika, Tome 11 (1975) no. 4, p. 312. http://geodesic.mathdoc.fr/item/KYB_1975__11_4_a4/