Kolařík, P., and J. Rotrekl. 2013. “Regulation of the Abundance of Clover Seed Weevils, Apion Spp. (Coleoptera: Curculionidae) in a Seed Stand of Red Clover (Trifolium Pratense L.)”. Journal of Entomological and Acarological Research 45 (3):e19. https://doi.org/10.4081/jear.2013.e19.