@article{01779097,
title = {An },
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {30},
year = {2002},
pages = {31-37},
doi = {10.1155/S016117120200697X},
zbl = {1001.47023},
language = {en},
url = {http://dml.mathdoc.fr/item/01779097}
}
Sulaiman, W.T. An . International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 31-37. doi : 10.1155/S016117120200697X. http://gdmltest.u-ga.fr/item/01779097/