@article{SM_1996_187_3_a6,
     author = {P. I. Topalov},
     title = {Computation of the~fine {Fomenko{\textendash}Zieschang} invariant for the~main integrable cases of rigid body motion},
     journal = {Sbornik. Mathematics},
     pages = {451--468},
     year = {1996},
     volume = {187},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1996_187_3_a6/}
}