@article{10_4153_CJM_1980_101_9,
     author = {Bshouty, D. and Hengartner, W. and Schober, G.},
     title = {Estimates for the {Koebe} {Constant} and the {Second} {Coefficient} for {Some} {Classes} of {Univalent} {Functions}},
     journal = {Canadian journal of mathematics},
     pages = {1311--1324},
     year = {1980},
     volume = {32},
     number = {6},
     doi = {10.4153/CJM-1980-101-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-101-9/}
}