European Commission http://europa.eu/about-eu/institutions-bodies/european-commission/index_en.htm
Council of Ministers http://www.consilium.europa.eu/council
General Secretariat of the Council http://www.consilium.europa.eu/contacts/faq?lang=en&faqid=79269
Council working groups http://www.consilium.europa.eu/council/committees-and-working-parties?lang=en
The European Council http://www.european-council.europa.eu/the-institution?lang=en
EU decision-making http://ec.europa.eu/atwork/decision-making/index_en.htm
Rules of procedure of the Council http://eur-lex.europa.eu/legal-content/EN/TXT/?qid=1399896281528&uri=CELEX:32009Q1211%2801%29
http://en.wikipedia.org/wiki/Voting_in_the_Council_of_the_European_Union
Qualified Majority Voting http://www.consilium.europa.eu/council/voting-system-at-the-council?tab=In-detail&subTab=Qualified-majority&lang=en