@article{02220802, title = {On }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2005}, year = {2005}, pages = {1101-1107}, doi = {10.1155/IJMMS.2005.1101}, zbl = {1082.54023}, language = {en}, url = {http://dml.mathdoc.fr/item/02220802} }
Li, Zhaowen. On . International Journal of Mathematics and Mathematical Sciences, Tome 2005 (2005) pp. 1101-1107. doi : 10.1155/IJMMS.2005.1101. http://gdmltest.u-ga.fr/item/02220802/