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4. Energy Efficiency Law. Available: https://likumi.lv/ta/en/en/id/280932-energy-efficiency-law
5. Ministry of Economics of Republic of Latvia, Lielie uznemumi un lielie elektroenergijas pateretaji. Available: https://www.em.gov.lv/lv/nozares_politika/energoefektivitate_un_siltumapgade/energoefektivitate/lielie_uznemumi_un_lielie_elektroenergijas_pateretaji/