@article{RM_1985_40_4_a23,
     author = {O. I. Bogoyavlenskii and G. F. Ivakh},
     title = {Topological analysis of {Steklov's} integrable cases},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {161--162},
     publisher = {mathdoc},
     volume = {40},
     number = {4},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1985_40_4_a23/}
}