@article{UMJ_2017_3_1_a2,
     author = {Alexander E. Elbert and Sergey V. Zakharov},
     title = {Dispersive rarefaction wave with a large initial gradient},
     journal = {Ural mathematical journal},
     pages = {33--43},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2017_3_1_a2/}
}