@article{10_1017_S0017089500006753,
     author = {Ruscheweyh, S.},
     title = {Coefficient conditions for starlike functions},
     journal = {Glasgow mathematical journal},
     pages = {141--142},
     year = {1987},
     volume = {29},
     number = {1},
     doi = {10.1017/S0017089500006753},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006753/}
}