Catalonia referendum: Who are the Catalans?, Catalonia News

Inhabitants of the Catalan region number up to 7.5 million, accounting for 15 percent of Spain’s population.

Which other regions want to secede from Spain?, Catalonia News

Catalan referendum: As it happened – POLITICO

Catalonia pushes for independence from Spain: What to know

The Season of Self-Determination: An Analysis of Catalonia's Independence Referendum - American University Washington College of Law

EU Membership on the Line: Independence Would Prove Costly for Catalonia - Atlantic Council

Thousands of Catalans rally for independence in Barcelona

Timeline of Catalan separatism that has rocked Spain, Catalonia News

Thousands mark Catalonia Day as regional parties become Spain's kingmakers

Opportunity and risk for Catalan research in independence debate