@article{10_4153_CJM_1967_038_0,
     author = {Libera, Richard J.},
     title = {Univalent {\ensuremath{\alpha}-Spiral} {Functions}},
     journal = {Canadian journal of mathematics},
     pages = {449--456},
     year = {1967},
     volume = {19},
     number = {1},
     doi = {10.4153/CJM-1967-038-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-038-0/}
}