@article{03920879, title = {Some radius of convexity problems for certain classes of analytic functions.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {7}, year = {1984}, pages = {713-718}, doi = {10.1155/S0161171284000740}, zbl = {0576.30009}, language = {en}, url = {http://dml.mathdoc.fr/item/03920879} }
Noor, Khalida I.; Al-Madifer, Hailah. Some radius of convexity problems for certain classes of analytic functions.. International Journal of Mathematics and Mathematical Sciences, Tome 7 (1984) pp. 713-718. doi : 10.1155/S0161171284000740. http://gdmltest.u-ga.fr/item/03920879/