@article{FAA_1982_16_4_a20,
     author = {S. I. Svinolupov and V. V. Sokolov},
     title = {Evolution equations with nontrivial conservative laws},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {86--87},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1982_16_4_a20/}
}