Papáč, V., M. Lukić, and Ľubomír Kováč. “Genus Neelus Folsom, 1896 (Hexapoda, Collembola) Reveals Its Diversity in Cave Habitats: Two New Species from Croatia”. Zootaxa, vol. 4088, no. 1, Mar. 2016, pp. 51–75, doi:10.11646/zootaxa.4088.1.2.