@article{01656129,
title = {On some hyperbolic planes from finite projective planes.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {25},
year = {2001},
pages = {757-762},
doi = {10.1155/S0161171201006184},
zbl = {0987.51004},
language = {en},
url = {http://dml.mathdoc.fr/item/01656129}
}
Celik, Basri. On some hyperbolic planes from finite projective planes.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 757-762. doi : 10.1155/S0161171201006184. http://gdmltest.u-ga.fr/item/01656129/