Man pages matching name rdf::icalendar in section 3pm:

RDF::iCalendar.3pm.en	debian 10 / librdf-icalendar-perl
RDF::iCalendar.3pm.en	debian 11 / librdf-icalendar-perl
RDF::iCalendar.3pm.en	debian 12 / librdf-icalendar-perl