@article{AM2_1993__45_2-3_137532,
     author = {T.W. Cusick},
     title = {On {Perrine's} generalized {Markoff} equations. {(Summary).}},
     journal = {Aequationes mathematicae},
     pages = {322--322},
     publisher = {mathdoc},
     volume = {45},
     number = {2-3},
     year = {1993},
     zbl = {0813.11013},
     url = {http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137532/}
}