@article{01821308, title = {On sectional and bisectional curvature of the }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {30}, year = {2002}, pages = {17-27}, doi = {10.1155/S0161171202201167}, zbl = {1020.53009}, language = {en}, url = {http://dml.mathdoc.fr/item/01821308} }
Ianus, S.; Rizza, G.B. On sectional and bisectional curvature of the . International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 17-27. doi : 10.1155/S0161171202201167. http://gdmltest.u-ga.fr/item/01821308/