@article{RM_1987_42_6_a17,
     author = {A. A. Oshemkov},
     title = {The~topology of surfaces of constant energy and bifurcation diagrams for integrable cases of the dynamics of a rigid body on $\operatorname{SO}(4)$},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {241--242},
     publisher = {mathdoc},
     volume = {42},
     number = {6},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1987_42_6_a17/}
}