@article{MZM_2021_110_6_a14,
     author = {Yu. G. Rykov},
     title = {Variational {Formulation} of the {Problem} of {Finding} {Generalized} {Solutions} for {Quasilinear} {Hyperbolic} {Systems} of {Conservation} {Laws}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {944--947},
     publisher = {mathdoc},
     volume = {110},
     number = {6},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2021_110_6_a14/}
}