A faunistic database on the spiders of the Caucasus
Logunov, D. V.; Guseinov, E. F. (2008): A faunistic review of the spider family Philodromidae (Aranei) of Azerbaijan. Arthropoda Selecta 17 (1-2): 117-131. (full-text PDF).
"... a thorough collecting of Arachnids in Transcaucasia would yield a magnificent prey because, namely in spiders, an astonishing richness in both individuals and species made itself noticeable." L. Koch (1878)