@article{UZKU_2015_157_3_a6,
     author = {N. M. Komartsov and T. A. Luzhanskaya and B. A. Rychkov},
     title = {The concept of slipping and rock mechanics},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {54--58},
     publisher = {mathdoc},
     volume = {157},
     number = {3},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2015_157_3_a6/}
}