@article{10_4064_ap_49_1_31_34,
     author = {R. Parvatham and S. Radha},
     title = {On certain classes of analytic functions},
     journal = {Annales Polonici Mathematici},
     pages = {31--34},
     publisher = {mathdoc},
     volume = {49},
     number = {1},
     year = {1988},
     doi = {10.4064/ap-49-1-31-34},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-49-1-31-34/}
}