Byriel, D., B. Kristensen, K. Klitgaard, and R. Bødker. “Relative Abundance and Geographical Variation of Culex Pipiens and Culex Torrentium (Diptera: Culicidae) in CO2-Baited Traps in Denmark”. Entomologica Fennica, vol. 29, no. 3, Dec. 2018, pp. 112-8, doi:10.33338/ef.77278.