@incollection{2021:bttcher:4_das_mg,
title = {4 Das Mögliche ist das Reale},
year = {2021},
note = {},
booktitle = {Europa 2020},
pages = {159--164},
edition = {1},
author = {Böttcher, Winfried},
publisher = {Tectum},
address = {Baden-Baden},
series = {},
volume = {}
}