@article{01770082, title = {The Riemann tensor for nonholonomic manifolds.}, journal = {Homology, Homotopy and Applications}, volume = {4}, year = {2002}, pages = {397-407}, zbl = {1015.53012}, language = {en}, url = {http://dml.mathdoc.fr/item/01770082} }
Leites, Dimitry. The Riemann tensor for nonholonomic manifolds.. Homology, Homotopy and Applications, Tome 4 (2002) pp. 397-407. http://gdmltest.u-ga.fr/item/01770082/