@article{JDM_1937__47_146148,
     author = {Robert Sauer},
     title = {Ebene gleicheckige {Polygongitter.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {115--124},
     publisher = {mathdoc},
     volume = {47},
     year = {1937},
     zbl = {0017.02903},
     url = {http://geodesic.mathdoc.fr/item/JDM_1937__47_146148/}
}