@article{RCM_1979__13_181685,
     author = {S.K. Bajpai and S.P. Dwivedi},
     title = {Certain {Classes} {Of} {Univalent} {Analitic} {Functions.}},
     journal = {Revista colombiana de matematicas},
     pages = {207--244},
     year = {1979},
     volume = {13},
     zbl = {0434.30011},
     url = {http://geodesic.mathdoc.fr/item/RCM_1979__13_181685/}
}