@article{GDZPPN002339943,
title = {The spectral radius of the Coxeter transformations for a generalized Cartan matrix.},
journal = {Mathematische Annalen},
volume = {300},
year = {1994},
pages = {331-340},
zbl = {0819.15008},
url = {http://dml.mathdoc.fr/item/GDZPPN002339943}
}
Ringel, Claus Michael. The spectral radius of the Coxeter transformations for a generalized Cartan matrix.. Mathematische Annalen, Tome 300 (1994) pp. 331-340. http://gdmltest.u-ga.fr/item/GDZPPN002339943/