@article{MM2_1979__27_154603,
     author = {R\"udiger Landes},
     title = {Quasilinear {Elliptic} {Operations} and {Weak} {Solutions} of the {Euler} {Equation.}},
     journal = {Manuscripta mathematica},
     pages = {47--72},
     publisher = {mathdoc},
     volume = {27},
     year = {1979},
     zbl = {0398.35033},
     url = {http://geodesic.mathdoc.fr/item/MM2_1979__27_154603/}
}