@article{1028989725,
author = {Leisenring, Kenneth},
title = {The natural map of the hyperbolic plane into the Euclidean circle.},
journal = {Michigan Math. J.},
volume = {1},
number = {2},
year = {1952},
pages = { 5-10},
language = {en},
url = {http://dml.mathdoc.fr/item/1028989725}
}
Leisenring, Kenneth. The natural map of the hyperbolic plane into the Euclidean circle.. Michigan Math. J., Tome 1 (1952) no. 2, pp. 5-10. http://gdmltest.u-ga.fr/item/1028989725/