@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/