@article{MZM_2017_101_1_a10,
     author = {I. A. Rudakov},
     title = {Periodic {Solutions} of the {Quasilinear} {Equation} of {Forced} {Vibrations} of an {Inhomogeneous} {String}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {116--129},
     publisher = {mathdoc},
     volume = {101},
     number = {1},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2017_101_1_a10/}
}