@article{01780387, title = {On an infinite series for }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {30}, year = {2002}, pages = {675-680}, doi = {10.1155/S0161171202007779}, zbl = {1029.26010}, language = {en}, url = {http://dml.mathdoc.fr/item/01780387} }
Chen, Hongwei. On an infinite series for . International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 675-680. doi : 10.1155/S0161171202007779. http://gdmltest.u-ga.fr/item/01780387/