@incollection{2025:oltmer:schenge,
title = {„Schengen“ – eine migrationshistorische Verortung},
year = {2025},
note = {},
booktitle = {40 Jahre Schengener Übereinkommen},
pages = {127--148},
edition = {1},
author = {Oltmer, Jochen},
publisher = {Nomos},
address = {Baden-Baden},
series = {Saarbrücker Beiträge zur Europaforschung},
volume = {6}
}