Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{KYB_1992__28_Suppl_a2, author = {Ostasiewicz, Walenty}, title = {Half a century of fuzzy sets}, journal = {Kybernetika}, pages = {17--20}, publisher = {mathdoc}, volume = {28}, number = {Suppl}, year = {1992}, mrnumber = {1226044}, zbl = {0875.04001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/KYB_1992__28_Suppl_a2/} }
Ostasiewicz, Walenty. Half a century of fuzzy sets. Kybernetika, Tome 28 (1992) no. Suppl, pp. 17-20. http://geodesic.mathdoc.fr/item/KYB_1992__28_Suppl_a2/