@article{GDZPPN000365793,
title = {There Exist 6n/13 Ordinary Points.},
journal = {Discrete \& computational geometry},
volume = {10},
year = {1993},
pages = {187-202},
zbl = {0771.52003},
url = {http://dml.mathdoc.fr/item/GDZPPN000365793}
}
Csima, J.; Sawyer, E.T. There Exist 6n/13 Ordinary Points.. Discrete & computational geometry, Tome 10 (1993) pp. 187-202. http://gdmltest.u-ga.fr/item/GDZPPN000365793/