@article{MZM_2020_108_4_a10,
     author = {A. V. Tsvetkova and A. I. Shafarevich},
     title = {Localized {Asymptotic} {Solution} of a {Variable-Velocity} {Wave} {Equation} on the {Simplest} {Decorated} {Graph} with {Initial} {Conditions} on a {Surface}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {601--616},
     publisher = {mathdoc},
     volume = {108},
     number = {4},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_108_4_a10/}
}