Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_2001_31_2a_8, author = {Lj. Gaji\'c}, title = {On ultrametric space}, journal = {Novi Sad Journal of Mathematics}, pages = {69-71}, publisher = {mathdoc}, volume = {31}, number = {2}, year = {2001}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2001_31_2a_8/} }
Lj. Gajić. On ultrametric space. Novi Sad Journal of Mathematics, Tome 31 (2001) no. 2. http://geodesic.mathdoc.fr/item/NSJOM_2001_31_2a_8/