@article{00569387,
title = {On a subclass of },
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {17},
year = {1994},
pages = {209-216},
doi = {10.1155/S0161171294000323},
zbl = {0793.41005},
language = {en},
url = {http://dml.mathdoc.fr/item/00569387}
}
Li, Xin. On a subclass of . International Journal of Mathematics and Mathematical Sciences, Tome 17 (1994) pp. 209-216. doi : 10.1155/S0161171294000323. http://gdmltest.u-ga.fr/item/00569387/