@article{TRSPY_2016_294_a16,
     author = {I. A. Bizyaev and A. V. Borisov and I. S. Mamaev},
     title = {The {Hess--Appelrot} system and its nonholonomic analogs},
     journal = {Informatics and Automation},
     pages = {268--292},
     publisher = {mathdoc},
     volume = {294},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2016_294_a16/}
}