ReferenceGoogleLink Represents a link to a user's profile. 
ReferenceJiraRenderer Reference JIRA renderer implementation. 
ReferenceLinkResolver For all link expression starting with '=', this resolves to link to a Wikipedia article with given subject. 
ReferenceMacro A reference macro that reverses its body 
ReferenceRendererComponentFactory Reference renderer component factory. 
ReferenceWikipediaLink Represents a link to a Wikipedia article.