%0 Journal Article %A Nguyen Tien Zung %T Topological invariants of integrable geodesic flows on the higher-dimensional torus and sphere %J Informatics and Automation %D 1994 %P 73-90 %V 205 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1994_205_a5/ %G ru %F TRSPY_1994_205_a5