Requested reference
Blick, T., Otto, S., Fritzén, N. R. & Floren, A. (2006). Theridion palmgreni Marusik & Tsellarius, 1986: first record for Poland, new data from Finland, Russia and Estonia - with a review of distribution and ecology (Araneae, Theridiidae). Fragmenta Faunistica 49(2): 115-126. doi:10.3161/00159301FF2006.49.2.115 -- Show included taxa