Hyperbolic surfaces of the form z == f (x, y).
Mathematische Annalen, Tome 144 (1961), pp. 77-79
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@article{MAN_1961__144_160879,
author = {R. OSSERMAN},
title = {Hyperbolic surfaces of the form z == f (x, y).},
journal = {Mathematische Annalen},
pages = {77--79},
publisher = {mathdoc},
volume = {144},
year = {1961},
zbl = {0124.29103},
url = {http://geodesic.mathdoc.fr/item/MAN_1961__144_160879/}
}
R. OSSERMAN. Hyperbolic surfaces of the form z == f (x, y).. Mathematische Annalen, Tome 144 (1961), pp. 77-79. http://geodesic.mathdoc.fr/item/MAN_1961__144_160879/