@article{PA_2002_9_a0,
     author = {A. Ganczar},
     title = {Multivalent $\alpha$ --- convex harmonic mappings},
     journal = {Problemy analiza},
     pages = {3--13},
     publisher = {mathdoc},
     number = {9},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PA_2002_9_a0/}
}