R.  Bekchiev and Kostova, R., ?The Subfamily Pselaphinae (Coleoptera: Staphylinidae) of South-western Bulgaria: Rila and Pirin Mountains?, Acta Zoologica Bulgarica, vol. 74, pp. 169-174, 2022.

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.