1. Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the Promotion of the Use of Energy from Renewable Sources and Amending and Subsequently Repealing Directives 2001/77/EC and 2003/30/EC (‘RES Directive’) (OJ L 140, 5.6.2009)
https://eur-lex.europa.eu/legal-content/EN/ALL/?uri=celex%3A32009L0028
2. Regulation (EU) 2018/1999 of the European Parliament and of the Council of 11 December 2018 on the Governance of the Energy Union and Climate Action, Amending Regulations (EC) No 663/2009 and (EC) No 715/2009 of the European Parliament and of the Council, Directives 94/22/EC, 98/70/EC, 2009/31/EC, 2009/73/EC, 2010/31/EU, 2012/27/EU and 2013/30/EU of the European Parliament and of the Council, Council Directives 2009/119/EC and (EU) 2015/652 and Repealing Regulation (EU) No 525/2013 of the European Parliament and of the Council
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv%3AOJ.L_.2018.328.01.0001.01.ENG
3. A Policy Framework for Climate and Energy in the Period from 2020 to 2030,2014
4. An overview of legislative and institutional barriers of Latvia’s renewable energy production;Leikučs;Manag. Theory Stud. Rural Busines Infrastruct. Dev.,2011
5. Competing coalitions: The politics of renewable energy and fossil fuels in Mexico, South Africa and Thailand