<field name="lccn" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="medium" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="lccn" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="medium" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>