Schengen Border Controls in the Time of Coronavirus (April 14, 2020) - Political Geography Now
The Schengen crisis: a failure - The New Federalist
Visa Waiver Eligible Travelers Going To Europe & Schengen Countries Will Require ETIAS Electronic Travel Authorization From 2021 - LoyaltyLobby
Schengen Area - Wikipedia
Europe's Schengen area: border free, with exceptions – European Data News Hub
Entry Exit System EES system (EU borders in 2022)
Free movement and border policies in Africa and Europe
The Future of Schengen – European Council on Foreign Relations
Schengen: a guide to the European border-free zone | News | European Parliament
EU facts behind the claims: borders - Full Fact
What is Schengen? - Australian Institute of International Affairs - Australian Institute of International Affairs
Why the Schengen agreement might be under threat | The Economist
Ever Closed Borders - Das Progressive Zentrum
Eight Schengen Countries Keeping Internal Border Controls in Place - SchengenVisaInfo.com
Let's end Bulgaria and Romania's 11-year Schengen purgatory
Europe had a dream of a land without borders. Now that dream may be turning to dust. - The Washington Post
Schengen Area - Wikipedia
The Union's external borders: a European debate revisited
Schengen Area Countries - Schengen Agreement, Visa Information
List of non Schengen countries (= not part of the Schengen zone)
6 Schengen Area Countries Have Now Extended Their Border Controls for Another Half-Year - SchengenVisaInfo.com
EXPLAINED: Which Schengen area countries have border controls in place and why? - The Local
Schengen at risk, border controls in six countries - InfoMigrants
Border checks in EU challenge Schengen Agreement – DW – 11/12/2019
Strengthening the EU's external borders - Consilium
France Strategie: Schengen Area GDP Significantly Affected by EU Immigration Border Controls
Is this the end of Schengen? | World Economic Forum
