@incollection{2015:greiffenhagen:die_materi,
title = {Die Materialität der Mathematik. Wie Mathematik an der Tafel vorgeführt wird},
year = {2015},
note = {},
booktitle = {Bildungspraxis},
pages = {283--308},
edition = {1},
author = {Greiffenhagen, Christian},
publisher = {Velbrück Wissenschaft},
address = {Weilerswist},
series = {},
volume = {}
}