@article{MZM_2013_93_5_a5,
     author = {S. Yu. Dobrokhotov and S. B. Medvedev and D. S. Minenkov},
     title = {On {Replacements} {Reducing} {One-Dimensional} {Systems} of {Shallow-Water} {Equations} to the {Wave} {Equation} with {Sound} {Speed} $c^2=x$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {716--727},
     publisher = {mathdoc},
     volume = {93},
     number = {5},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_93_5_a5/}
}