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mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">abstracting and indexing services</topic></authority><related type="broader"><topic>information services</topic></related><variant type="other"><topic>services, abstracting and indexing</topic></variant><variant type="other"><topic>services, indexing and abstracting</topic></variant><variant type="other"><topic>A &amp; I services</topic></variant><variant type="other"><topic>A and I services</topic></variant><variant type="other"><topic>abstracting and indexing service</topic></variant><variant type="other"><topic>indexing and abstracting services</topic></variant><variant type="other"><topic>services, A &amp; I</topic></variant><variant type="other"><topic>services, A and I</topic></variant> <note xml:lang="en"><![CDATA[ Information services which provide access to documents in a specific subject field or fields by means of abstracts and indexes issued periodically on paper, in microform, or as machine-readable databases, available by subscription or fee. ]]></note></mads>