Nilsson, A. “Taxonomic and Faunistic Notes on East Palaearctic <i>Colymbetes</i> Species, With the Description of a New Species from the Far East (Coleoptera: Dytiscidae)”. Entomologica Fennica, vol. 13, no. 3, Sept. 2002, pp. 189–193, doi:10.33338/ef.84159.