@article{RSMUP_1988__79__247_0,
     author = {Beir\~ao da Veiga, H.},
     title = {Boundary-value problems for a class of first order partial differential equations in {Sobolev} spaces and applications to the {Euler} flow},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {247--273},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {79},
     year = {1988},
     mrnumber = {964034},
     zbl = {0709.35082},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1988__79__247_0/}
}