Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_2010_40_2a_3, author = {R. N. Singh, and M. K. Pandey, and D. Gautam}, title = {On $\mathbf{N(k)-}$quasi {Einstein} manifold}, journal = {Novi Sad Journal of Mathematics}, pages = {23-28}, publisher = {mathdoc}, volume = {40}, number = {2}, year = {2010}, url = {http://geodesic.mathdoc.fr/item/NSJOM_2010_40_2a_3/} }
R. N. Singh,; M. K. Pandey,; D. Gautam. On $\mathbf{N(k)-}$quasi Einstein manifold. Novi Sad Journal of Mathematics, Tome 40 (2010) no. 2. http://geodesic.mathdoc.fr/item/NSJOM_2010_40_2a_3/