R.  Bekchiev, ?Faunistical research on Pselaphinae fauna (Coleoptera: Staphylinidae) in several regions of south-west Bulgaria?, Sofia University 'St. Climent Ohridski", Sofia, 2007.

M.  Schulke and Smetana, A., Catalogue of Palaearctic Coleoptera - Pselaphinae, vol. 2.1. Brill Books, 2015.

I.  Löbl and Besuchet, C., ?Staphylinidae: Pselaphinae,?, in Catalogue of Palaearctic Coleoptera. Vol. 2. Hydrophiloidea - Histeroidea - Staphylinoidea., I.  Löbl and Smetana, A., Eds. Stenstrup: Apollo Books, 2004, pp. 272-329.

R.  Bekchiev, ?A study of the Pselaphinae (Coleoptera, Staphylinidae) in the Rhodope Mountains (Bulgaria)?, in Biodiversity of Bulgaria 4. Biodiversity of Western Rhodopes (Bulgaria and Greece) II., P.  Beron, Ed. Sofia: Pensoft Publishers & National Museum of Natural History, Bulgarian Academy of Sciences, 2011, p. 267?278.

R.  Bekchiev and Shishiniova, M., ?A contribution to the Pselaphinae fauna (Coleoptera: Staphylinidae) of the Vitosha Mountain?, Acta Zoologica Bulgarica, vol. 59, pp. 33-39, 2007.

R.  Bekchiev, ?The subfamily Pselaphinae (Coleoptera: Staphylinidae) of southwestern Bulgaria. I.?, Historia Naturalis Bulgarica, vol. 19, pp. 51-71, 2008.