Temporary reintroduction of border control at internal borders. - Santaniello & Partners
EU border controls could be extended in crisis, Commission says | Reuters
Socialists' electioneering puts Schengen at risk
Schengen area: Council recommends prolongation of internal border controls - World | ReliefWeb
Are Schengen Border Controls the New Norm? | liberties.eu
Border checks in EU challenge Schengen Agreement – DW – 11/12/2019
Border fences and internal border controls in Europe (March 2017) - World | ReliefWeb
Is this the end of Schengen? | World Economic Forum
A not-so-temporary reinstatement of internal border controls? - Leiden Law Blog
Stjórnarráðið | Iceland Introduces Temporary Schengen Border Controls and 14-day Quarantine for International Arrivals
Saving Schengen: discussing the options - Consilium
Border checks in EU challenge Schengen Agreement – DW – 11/12/2019
Schengen Area - Wikipedia
The Future of Schengen – European Council on Foreign Relations
6 Schengen Area Countries Still Keeping Temporary Internal Border Controls in Place - SchengenVisaInfo.com
Map: Which Schengen Borders Are Closed to Passport-Free Travel in August 2017?
Map: Schengen Border Controls Before Coronavirus (2017-2020) - Political Geography Now
Updated: Temporary Internal Border Controls Reintroduced Across Schengen - SchengenVisaInfo.com
Border checks are undermining Schengen | The Economist
Dismantling Schengen - half a year at a time
The impact of coronavirus on Schengen borders | Epthinktank | European Parliament
Migrant crisis: EU seeks more controls for Schengen borders - BBC News
Temporary border controls in the Schengen area | Epthinktank | European Parliament
Leak: 'Temporary' internal Schengen border checks could last four years – EURACTIV.com
