@article{01548198, title = {The product of }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {23}, year = {2000}, pages = {361-369}, doi = {10.1155/S0161171200004233}, zbl = {0963.46020}, language = {en}, url = {http://dml.mathdoc.fr/item/01548198} }
Li, C.K. The product of . International Journal of Mathematics and Mathematical Sciences, Tome 23 (2000) pp. 361-369. doi : 10.1155/S0161171200004233. http://gdmltest.u-ga.fr/item/01548198/