@article{MAN_1966__165_161421,
     author = {G. GUDERLEY},
     title = {Ein {Extremalprinzip} f\"ur reibungsfreie station\"are {Str\"omungen} eines kompressiblen {Mediums.}},
     journal = {Mathematische Annalen},
     pages = {62--70},
     publisher = {mathdoc},
     volume = {165},
     year = {1966},
     zbl = {0151.40503},
     url = {http://geodesic.mathdoc.fr/item/MAN_1966__165_161421/}
}