<?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">infrastructural systems</topic></authority><related type="narrower"><topic>transit systems</topic></related><related type="narrower"><topic>utilities</topic></related><related type="narrower"><topic>telecommunication systems</topic></related><related type="narrower"><topic>drainage systems</topic></related><related type="narrower"><topic>Internet</topic></related><related type="broader"><topic>systems by function</topic></related><variant type="other"><topic>infrastructural system</topic></variant><variant type="other"><topic>systems, infrastructural</topic></variant> <note xml:lang="en"><![CDATA[ Networks or systems that support the public works of a country, state, or region.  ]]></note></mads>