Voir la notice de l'article provenant de la source European Digital Mathematics Library
@misc{AMUC_1990__56-57_186064, title = {[unknown]}, journal = {Acta mathematica Universitatis Comenianae}, pages = {249--259}, publisher = {mathdoc}, volume = {56-57}, year = {1990}, url = {http://geodesic.mathdoc.fr/item/AMUC_1990__56-57_186064/} }
[unknown]. Acta mathematica Universitatis Comenianae, 56-57 (1990), pp. 249-259. http://geodesic.mathdoc.fr/item/AMUC_1990__56-57_186064/