@article{VMUMM_2001_3_a8,
     author = {D. V. Georgievskii},
     title = {Perturbations of sliding surfaces in the three-dimensional theory of perfect plasticity},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {45--50},
     publisher = {mathdoc},
     number = {3},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2001_3_a8/}
}