@article{1206133155,
author = {Kreith, Kurt},
title = {A class of hyperbolic focal point problems},
journal = {Hiroshima Math. J.},
volume = {14},
number = {2},
year = {1984},
pages = { 203-210},
language = {en},
url = {http://dml.mathdoc.fr/item/1206133155}
}
Kreith, Kurt. A class of hyperbolic focal point problems. Hiroshima Math. J., Tome 14 (1984) no. 2, pp. 203-210. http://gdmltest.u-ga.fr/item/1206133155/