<field name="electronic-url" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="isbn" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="issn" 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="electronic-url" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="isbn" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="issn" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>
<field name="lccn" type="text" indexed="true" stored="true" multiValued="true" omitNorms="true"/>