@article{VTGU_2013_4_a4,
     author = {N. M. Onishchuk},
     title = {Extremal curves of geodesic torsion on a nonholonomic distribution},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {39--49},
     year = {2013},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2013_4_a4/}
}