@article{CMH_1949__23_138978,
     author = {P. Matthieu},
     title = {Die hydrodynamische {Bedeutung} der automorphen {Funktionen} (ebene {Str\"omungen} um {Kreisbogenpolygone).}},
     journal = {Commentarii mathematici Helvetici},
     pages = {80--122},
     publisher = {mathdoc},
     volume = {23},
     year = {1949},
     zbl = {0034.26704},
     url = {http://geodesic.mathdoc.fr/item/CMH_1949__23_138978/}
}