@article{MZ_1964__86_170351,
     author = {S.M. Shah and Alfred Gray},
     title = {Holomorphic functions with gap power series.},
     journal = {Mathematische Zeitschrift},
     pages = {375--394},
     year = {1964},
     volume = {86},
     zbl = {0133.03501},
     url = {http://geodesic.mathdoc.fr/item/MZ_1964__86_170351/}
}