Niemelä, Jari, Eero Halme, and Yrjö Haila. “Balancing Sampling Effort in Pitfall Trapping of Carabid Beetles”. Entomologica Fennica 1, no. 4 (December 1, 1990): 233–238. Accessed November 22, 2024. https://journal.fi/entomolfennica/article/view/83490.