@incollection{2021:weller:vorwort,
title = {Vorwort},
year = {2021},
note = {},
booktitle = {Alles bleibt anders},
pages = {7--8},
edition = {},
author = {Weller, Konrad},
publisher = {Psychosozial-Verlag},
address = {Gießen},
series = {},
volume = {}
}