@article{01716640, title = {On }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {749-757}, doi = {10.1155/S0161171201006627}, zbl = {0996.06011}, language = {en}, url = {http://dml.mathdoc.fr/item/01716640} }
Neggers, Joseph; Ahn, Sun Shin; Kim, Hee Sik. On . International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 749-757. doi : 10.1155/S0161171201006627. http://gdmltest.u-ga.fr/item/01716640/