@article{GDZPPN002323648, title = {Geodesic Flow on SO(4) and Abelian Surfaces.}, journal = {Mathematische Annalen}, volume = {264}, year = {1983}, pages = {435-472}, zbl = {0521.58042}, url = {http://dml.mathdoc.fr/item/GDZPPN002323648} }
Haine, L. Geodesic Flow on SO(4) and Abelian Surfaces.. Mathematische Annalen, Tome 264 (1983) pp. 435-472. http://gdmltest.u-ga.fr/item/GDZPPN002323648/