1. Kyoto Protocol—United Nations Framework Convention on Climate Changehttp://unfccc.int/resource/docs/convkp/kpeng.pdf
2. Paris Agreement—United Nations Framework Convention on Climate Changehttp://unfccc.int/files/essential_background/convention/application/pdf/english_paris_agreement.pdf
3. Decarbonizing the Energy System—The Role of Transmission System Operatorshttps://www.swissgrid.ch/dam/swissgrid/about-us/company/sustainability/decarbonisation-role-of-TSOs-en.pdf
4. Asset Management Decision Making Using Different Risk Assessment Methodologies,2013