@article{GDZPPN002040417,
title = {On Perrine's generalized Markoff equation.},
journal = {Aequationes mathematicae},
volume = {45},
year = {1993},
pages = {203-211},
zbl = {0813.11013},
url = {http://dml.mathdoc.fr/item/GDZPPN002040417}
}
Cusick, T.W. On Perrine's generalized Markoff equation.. Aequationes mathematicae, Tome 45 (1993) pp. 203-211. http://gdmltest.u-ga.fr/item/GDZPPN002040417/