@article{EJDE_2000__2000__a46,
     author = {Villarreal,  F.},
     title = {Colombeau's theory and shock wave solutions for systems of {PDEs}},
     journal = {Electronic journal of differential equations},
     year = {2000},
     volume = {2000},
     zbl = {0966.46022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a46/}
}