@article{GDZPPN002341867,
title = {Systoles of arithmetic surfaces and the Markoff spectrum.},
journal = {Mathematische Annalen},
volume = {305},
year = {1996},
pages = {191-204},
zbl = {0853.11054},
url = {http://dml.mathdoc.fr/item/GDZPPN002341867}
}
Schmutz, Paul. Systoles of arithmetic surfaces and the Markoff spectrum.. Mathematische Annalen, Tome 305 (1996) pp. 191-204. http://gdmltest.u-ga.fr/item/GDZPPN002341867/