@article{JDM_1921__30_145601,
     author = {W. Lietzmann},
     title = {Die {Mathematik} in der {Schulreform.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {59--68},
     publisher = {mathdoc},
     volume = {30},
     year = {1921},
     zbl = {48.0058.04},
     url = {http://geodesic.mathdoc.fr/item/JDM_1921__30_145601/}
}