Gueorguiev & Lohaj 2008. Studies on genus Speluncarius, with description of a new subgenus and notes on the systematic position of S. (Hypogium) albanicus (Coleoptera, Carabidae, Pterostichini). Back to the roots and back to the future: towards a new synthesis between taxonomic, ecological and biogeographical approaches in carabidology: proceedings of the XIII European Carabidologists' Meeting, Blagoevgrad, August 20-24, 2007., Pensoft Publishers, Sofia, 2008: 1-509. Chapter pagination: 125-141