@article{VUU_2017_27_4_a7,
     author = {I. A. Bizyaev},
     title = {A {Chaplygin} sleigh with a moving point mass},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {583--589},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2017_27_4_a7/}
}