@article{GDZPPN002541904,
title = {Hyperbolic geometry in hyperbolically k-convex regions},
journal = {Revista colombiana de matematicas},
volume = {25},
year = {1991},
pages = {123-142},
zbl = {0784.53006},
url = {http://dml.mathdoc.fr/item/GDZPPN002541904}
}
Mejia, Diego; Minda, David. Hyperbolic geometry in hyperbolically k-convex regions. Revista colombiana de matematicas, Tome 25 (1991) pp. 123-142. http://gdmltest.u-ga.fr/item/GDZPPN002541904/