Requested reference
Deltshev, C. & Ćurčić, B. P. M. (1997). Contribution to the knowledge of the group europaeus of Centromerus Dahl (Linyphiidae, Araneae) in the Balkan Peninsula. Revue Suisse de Zoologie 104(1): 49-55. doi:10.5962/bhl.part.79989 -- Show included taxa