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elektromagnetlainete spekter, mille lainepikkus on suurem kui valgusel
infravalguse spekter . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kool_KV/infravalguse%20spekter/1/est (09.07.2026)
