Requested reference
Fiszer, J. (1988). The second locality of a rare spider Silometopus incurvatus (O. P.-Cambridge) (Aranei, Erigonidae) in Poland. Przegląd Zoologiczny 32: 529-533. 
-- Show included taxa
Fiszer, J. (1988). The second locality of a rare spider Silometopus incurvatus (O. P.-Cambridge) (Aranei, Erigonidae) in Poland. Przegląd Zoologiczny 32: 529-533. -- Show included taxa