Two-sheeted coverings of the disc.
Mathematica Scandinavica, Tome 61 (1987) no. 2, pp. 17-38
@article{MS2_1987__61_2_186105,
author = {Frank Forelli},
title = {Two-sheeted coverings of the disc.},
journal = {Mathematica Scandinavica},
pages = {17--38},
year = {1987},
volume = {61},
number = {2},
zbl = {0663.30042},
url = {http://geodesic.mathdoc.fr/item/MS2_1987__61_2_186105/}
}
Frank Forelli. Two-sheeted coverings of the disc.. Mathematica Scandinavica, Tome 61 (1987) no. 2, pp. 17-38. http://geodesic.mathdoc.fr/item/MS2_1987__61_2_186105/