@article{MZM_2020_108_3_a14,
     author = {Yu. G. Rykov},
     title = {Solutions with {Substance} {Decay} in {Pressureless} {Gas} {Dynamics} {Systems}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {477--480},
     publisher = {mathdoc},
     volume = {108},
     number = {3},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_108_3_a14/}
}