@article{01127594, title = {On }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {20}, year = {1997}, pages = {769-772}, doi = {10.1155/S0161171297001051}, zbl = {0895.30008}, language = {en}, url = {http://dml.mathdoc.fr/item/01127594} }
Fukui, Seichi. On . International Journal of Mathematics and Mathematical Sciences, Tome 20 (1997) pp. 769-772. doi : 10.1155/S0161171297001051. http://gdmltest.u-ga.fr/item/01127594/