Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_2001_31_1a_8, author = {E. Malkowsky and V. Veli\v{c}kovi\'c}, title = {On the {Gaussian} and mean curvature of certain surfaces}, journal = {Novi Sad Journal of Mathematics}, pages = {65-73}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {2001}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2001_31_1a_8/} }
E. Malkowsky; V. Veličković. On the Gaussian and mean curvature of certain surfaces. Novi Sad Journal of Mathematics, Tome 31 (2001) no. 1. http://geodesic.mathdoc.fr/item/NSJOM_2001_31_1a_8/