@article{AIHPC_2017__34_1_221_0,
     author = {Amorim, Paulo and Neves, Wladimir and Rodrigues, Jos\'e Francisco},
     title = {The obstacle-mass constraint problem for hyperbolic conservation laws. {Solvability}},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {221--248},
     publisher = {Elsevier},
     volume = {34},
     number = {1},
     year = {2017},
     doi = {10.1016/j.anihpc.2015.11.003},
     mrnumber = {3592685},
     zbl = {1357.35215},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2015.11.003/}
}