Varga, Z. .; Ronkay, G.; Nagy, J.; Ronkay, L. Contribution to the Taxonomy and Phylogeny of the Genus Polia Ochsenheimer, 1816 (Noctuidae, Noctuinae, Hadenini): Species Groups and Pairs in the Holarctic Subgenus Polia S. Str. actazool 2020, 66, 35-67.