Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1990_4_1_a1, author = {D. Cirich and Z. Mijajlovich}, title = {Topologies on {Classes}}, journal = {Mathematica balkanica}, pages = {10}, publisher = {mathdoc}, volume = {4}, number = {1}, year = {1990}, url = {http://geodesic.mathdoc.fr/item/MABA_1990_4_1_a1/} }
D. Cirich; Z. Mijajlovich. Topologies on Classes. Mathematica balkanica, Tome 4 (1990) no. 1, p. 10. http://geodesic.mathdoc.fr/item/MABA_1990_4_1_a1/