@incollection{2025:wandt:1_teil_e,
title = {1. Teil. Einführung},
year = {2025},
note = {},
booktitle = {Gesetzliche Schuldverhältnisse},
pages = {1--12},
edition = {12},
author = {Wandt, Manfred, <o. Professor an der Universität Frankfurt am Main},
publisher = {Vahlen},
address = {München},
series = {Vahlen Jura Lehrbuch},
volume = {}
}