Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1984__14__a32, author = {\v{S}e\v{s}elja Branimir and Vojvodi\'c Gradimir}, title = {Fuzzy sets on {S} as closure operations on {P(S)}}, journal = {Novi Sad Journal of Mathematics}, pages = {117-127}, publisher = {mathdoc}, volume = {14}, year = {1984}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1984__14__a32/} }
Šešelja Branimir; Vojvodić Gradimir. Fuzzy sets on S as closure operations on P(S). Novi Sad Journal of Mathematics, Tome 14 (1984). http://geodesic.mathdoc.fr/item/NSJOM_1984__14__a32/