Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1975_5_Nonea_1, author = {Stankovi\'c Bogoljub}, title = {On a class of operators}, journal = {Novi Sad Journal of Mathematics}, pages = {9-12}, publisher = {mathdoc}, volume = {5}, year = {1975}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1975_5_Nonea_1/} }
Stanković Bogoljub. On a class of operators. Novi Sad Journal of Mathematics, Tome 5 (1975). http://geodesic.mathdoc.fr/item/NSJOM_1975_5_Nonea_1/