@article{1029004522,
author = {Bear, H. S.},
title = {Distance-decreasing functions on the hyperbolic plane.},
journal = {Michigan Math. J.},
volume = {39},
number = {1},
year = {1992},
pages = { 271-279},
language = {en},
url = {http://dml.mathdoc.fr/item/1029004522}
}
Bear, H. S. Distance-decreasing functions on the hyperbolic plane.. Michigan Math. J., Tome 39 (1992) no. 1, pp. 271-279. http://gdmltest.u-ga.fr/item/1029004522/