@article{RM_1960_15_5_a6,
     author = {L. O. Dunduchenko and S. A. Kas'yanyuk},
     title = {On spiral functions univalent in an annulus},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {15},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1960_15_5_a6/}
}