@article{MZ_1974__138_172096,
     author = {Hans Joachim Schmid},
     title = {Eine geometrische {Deutung} der {Ungarischen} {Methode.}},
     journal = {Mathematische Zeitschrift},
     pages = {213--218},
     publisher = {mathdoc},
     volume = {138},
     year = {1974},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__138_172096/}
}