@article{ND_2010_6_4_a8,
     author = {V. V. Kozlov},
     title = {Lagrangian mechanics and dry friction},
     journal = {Russian journal of nonlinear dynamics},
     pages = {855--868},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2010_6_4_a8/}
}