@article{05030011,
title = {On },
journal = {Novi Sad Journal of Mathematics},
volume = {33},
year = {2003},
pages = {43-48},
zbl = {1090.53033},
language = {en},
url = {http://dml.mathdoc.fr/item/05030011}
}
De, U.C.; Shaikh, A.A.; Biswas, Sudipta. On . Novi Sad Journal of Mathematics, Tome 33 (2003) pp. 43-48. http://gdmltest.u-ga.fr/item/05030011/