@article{10_2298_TAM190116006E,
     author = {Kurt M. Ehlers and Jair Koiller},
     title = {Cartan meets {Chaplygin}},
     journal = {Theoretical and applied mechanics},
     pages = {15 },
     year = {2019},
     volume = {46},
     number = {1},
     doi = {10.2298/TAM190116006E},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/TAM190116006E/}
}