@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/