@article{CMH_1962__37_139259,
     author = {L. Koschmieder},
     title = {Zu {Eisensteins} transzendentem {Beweis} des quadratischen {Reziprozit\"atsgesetzes.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {235--239},
     publisher = {mathdoc},
     volume = {37},
     year = {1962},
     zbl = {0115.04003},
     url = {http://geodesic.mathdoc.fr/item/CMH_1962__37_139259/}
}