
                <hr ng-if="!$first"/>
                <bibliography ref-list="content"></bibliography>
            </div>
            <!-- end of bibliography -->


            <!-- appendix -->
            <div ng-if="header === 'app-group' && typeOf(contents['app']) !== 'Array'">
                <appendix app="contents['app']"></appendix>
            </div>
            <div ng-if="header === 'app-group' && typeOf(contents['app']) === 'Array'" ng-repeat="content in contents['app']">
                <hr ng