A demographic consequence of the First World War | VOX, CEPR Policy Portal
Coverage Bias in European Telephone Surveys: Developments of Landline and Mobile Phone Coverage across Countries and over Time | Survey Methods: Insights from the Field (SMIF)
140 years of Europe's changing population, mapped - Vox
Population trends 1950 – 2100: globally and within Europe — European Environment Agency
Population growth Europe 2020 | Statista
File:China Europe population linear 1000-1975.svg - Wikimedia Commons
Population trends 1950 – 2100: globally and within Europe — European Environment Agency