Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts
@article{PIM_2012_N_S_91_105_a2, author = {Aleksandar Bak\v{s}a}, title = {Ehresmann {Connection} in the {Geometry} of {Nonholonomic} {Systems}}, journal = {Publications de l'Institut Math\'ematique}, pages = {19 }, publisher = {mathdoc}, volume = {_N_S_91}, number = {105}, year = {2012}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PIM_2012_N_S_91_105_a2/} }
Aleksandar Bakša. Ehresmann Connection in the Geometry of Nonholonomic Systems. Publications de l'Institut Mathématique, _N_S_91 (2012) no. 105, p. 19 . http://geodesic.mathdoc.fr/item/PIM_2012_N_S_91_105_a2/