Man pages matching name atteanx::serializer::rdfa in section 3pm:

AtteanX::Serializer::RDFa.3pm.en	debian 10 / libatteanx-serializer-rdfa-perl
AtteanX::Serializer::RDFa.3pm.en	debian 11 / libatteanx-serializer-rdfa-perl
AtteanX::Serializer::RDFa.3pm.en	debian 12 / libatteanx-serializer-rdfa-perl