<?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">doubled columns</topic></authority><related type="broader"><topic>columns by location or context</topic></related><variant type="other"><topic>columns, doubled</topic></variant><variant type="other"><topic>doubled column</topic></variant> <note xml:lang="en"><![CDATA[ Pairs of columns which interlock as if the shaft of one were gripping the shaft of the other; for pairs of columns set close together so as to form a visual unit, use "coupled columns." ]]></note></mads>