@article{GDZPPN002363666,
title = {Efficient presentations of the group PSL(2, Z...) x PSL(2, Z...), for certain n, m.},
journal = {Mathematica Scandinavica},
volume = {80},
year = {1997},
pages = {188-194},
zbl = {0886.20027},
url = {http://dml.mathdoc.fr/item/GDZPPN002363666}
}
Vatansever, Bilal. Efficient presentations of the group PSL(2, Z...) x PSL(2, Z...), for certain n, m.. Mathematica Scandinavica, Tome 80 (1997) pp. 188-194. http://gdmltest.u-ga.fr/item/GDZPPN002363666/