@article{04010863, title = {On alpha-close-to-convex functions of order beta.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {9}, year = {1986}, pages = {435-438}, doi = {10.1155/S016117128600056X}, zbl = {0623.30017}, language = {en}, url = {http://dml.mathdoc.fr/item/04010863} }
Nasr, M.A. On alpha-close-to-convex functions of order beta.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 435-438. doi : 10.1155/S016117128600056X. http://gdmltest.u-ga.fr/item/04010863/