@misc{ELMA_1983__38_251510,
     title = {Das {Gitterspiel} {(Nachtrag).}},
     journal = {Elemente der Mathematik},
     pages = {20--20},
     publisher = {mathdoc},
     volume = {38},
     year = {1983},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1983__38_251510/}
}