%0 Journal Article %A O. E. Orel %A S. Takahashi %T Orbital classification of the integrable problems of Lagrange and Goryachev–Chaplygin by the methods of computer analysis %J Sbornik. Mathematics %D 1996 %P 93-110 %V 187 %N 1 %U http://geodesic.mathdoc.fr/item/SM_1996_187_1_a5/ %G en %F SM_1996_187_1_a5