@article{1195518787, author = {Ishii, Noburo}, title = {Fricke formula for quaternian groups}, journal = {Proc. Japan Acad.}, volume = {50}, number = {1}, year = {1974}, pages = { 677-682}, language = {en}, url = {http://dml.mathdoc.fr/item/1195518787} }
Ishii, Noburo. Fricke formula for quaternian groups. Proc. Japan Acad., Tome 50 (1974) no. 1, pp. 677-682. http://gdmltest.u-ga.fr/item/1195518787/