<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">spectrum</topic></authority><related type="narrower"><topic>visible spectrum</topic></related><related type="broader"><topic>physical sciences concepts</topic></related><variant type="other"><topic>spectra</topic></variant><variant type="other"><topic>spectrums</topic></variant> <note xml:lang="en"><![CDATA[ Generally an array of the components of an emission or wave separated and arranged in the order of some varying characteristic, as wavelength, mass, or energy. Specifically, the colored band into which a beam of light is decomposed by means of a prism or diffraction grating. ]]></note></mads>