@article{IVM_1959_5_a4,
     author = {E. A. Barbashin and V. A. Tabueva},
     title = {Pendulum oscillations with dry friction},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {48--57},
     publisher = {mathdoc},
     number = {5},
     year = {1959},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1959_5_a4/}
}