https://api.kde.org/legacy/okular/html/classOkular_1_1Annotation_1_1Revision.html
Okular - Okular::Annotation::Revision Class Reference
KDE products API documentation
revision classokularannotationreference
https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRes/res.cfm?id=160188
Class 2 Device Recall VERSYS BEADED FULLCOAT BOWED REVISION HIP PROSTHESIS
revision hipclassdevicerecallversys
https://doc.wikimedia.org/mediawiki-core/master/php/classMediaWiki_1_1Revision_1_1MainSlotRoleHandler.html
MediaWiki: MediaWiki\Revision\MainSlotRoleHandler Class Reference
mediawikirevisionclassreference