Catalonia referendum 2014 recommended academic resources.

self-determination referendum, 2014 took place in November 2014
On 23 January 2013 the Parliament of Catalonia adopted by 85 favourable votes, 41 against, and 2 abstentions the "Declaration of Sovereignty and of the Right to Decide of the Catalan People". It caled for self determination. however the spanish government blocked a full referendum and the it was branded a consultation not a full referendum by the authorities prior to the vote
The official government website Govern de la Generalitat de Catalunya has the provisional results

El Pais coverage
Van Guardia
Ultima Hora
Catalonia Votes website  is an initiative of the Public Diplomacy Council of Catalonia (DIPLOCAT), a public-private partnership designed to foster dialogue and connect the citizens of Catalonia with the rest of the world.
It has news plus some interesting policy papers
Opendemocracy net discussion
Open Europe blog summary.
The Conversation