Requested reference
Helsdingen, P. J. van (2019). Faunistiek en dynamiek in de spinnenwereld [Faunistics and dynamics in the spider world]. Nieuwsbrief SPINED 38: 41-43. 
-- Show included taxa
Helsdingen, P. J. van (2019). Faunistiek en dynamiek in de spinnenwereld [Faunistics and dynamics in the spider world]. Nieuwsbrief SPINED 38: 41-43. -- Show included taxa