@article{01336308,
title = {Hyperbolas and orthologic triangles.},
journal = {Mathematica Pannonica},
volume = {8},
year = {1997},
pages = {201-214},
zbl = {0929.51013},
language = {en},
url = {http://dml.mathdoc.fr/item/01336308}
}
Čerin, Z. Hyperbolas and orthologic triangles.. Mathematica Pannonica, Tome 8 (1997) pp. 201-214. http://gdmltest.u-ga.fr/item/01336308/