@article{05081390, title = {Einstein equations for }, journal = {Balkan Journal of Geometry and its Applications (BJGA)}, volume = {11}, year = {2006}, pages = {20-27}, zbl = {1106.53017}, language = {en}, url = {http://dml.mathdoc.fr/item/05081390} }
Balan, Vladimir; Brinzei, Nicoleta. Einstein equations for . Balkan Journal of Geometry and its Applications (BJGA), Tome 11 (2006) pp. 20-27. http://gdmltest.u-ga.fr/item/05081390/