1. UNEP (United Nations Environment Programme) Synthesis Report (2011) HFCs: a critical link in protecting climate and the ozone layer, pp 13–17
2. Kwon HJ (2014) Clean air conservation act related to refrigeration and air conditioning equipment. Korean J Air Refrig Eng 43:18–29
3. Lee YB, Choi Y, Kim YM, Park JW (2013) Study on the clean sir conservation act amendment for refrigerant management system improvement. Report of Korea Environment Corporation, pp 51–52
4. European Parliament and Council of the European Union (2006) Regulation (EC) No. 842/2006 of the European Parliament and of the Council of 17 May 2006 on certain fluorinated greenhouse gases. Official Journal of the European Union, pp 1–11
5. European Parliament and Council of the European Union (2006) Directive 2006/40/EC of the European Parliament and of the Council of 17 May 2006 relating to emissions from air-conditioning systems in motor vehicles and amending Council Directive 70/156/EEC. Official Journal of the European Union, pp 12–18