@article{10_2298_TAM201106015D,
     author = {Vladimir Dragovi\'c and Borislav Gaji\'c and Bo\v{z}idar Jovanovi\'c},
     title = {Demchenko's nonholonomic case of a gyroscopic ball rolling without sliding over a sphere after his 1923 {Belgrade} doctoral thesis},
     journal = {Theoretical and applied mechanics},
     pages = {257 },
     year = {2020},
     volume = {47},
     number = {2},
     doi = {10.2298/TAM201106015D},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/TAM201106015D/}
}