@article{05282477, title = {The }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2007}, year = {2007}, doi = {10.1155/2007/50875}, zbl = {1139.13003}, language = {en}, url = {http://dml.mathdoc.fr/item/05282477} }
Eslahchi, Ch.; Rahimi, A.M. The . International Journal of Mathematics and Mathematical Sciences, Tome 2007 (2007) . doi : 10.1155/2007/50875. http://gdmltest.u-ga.fr/item/05282477/