@article{ELMA_1972__27_141073,
     author = {Ernst Schuberth},
     title = {Zur {Lage} in der modernen {Mathematikdidaktik.}},
     journal = {Elemente der Mathematik},
     pages = {106--106},
     year = {1972},
     volume = {27},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1972__27_141073/}
}