2005

• Douglas, H. 2005: Revision of the genus Exoeolus Broun (Coleoptera: Elateridae). New Zealand entomologist 28(1): 29–35. DOI: 10.1080%2F00779962.2005.9722683 . Reference page. 

2011

• Douglas, H. 2011: Phylogenetic relationships of Elateridae inferred from adult morphology, with special reference to the position of Cardiophorinae. Zootaxa 2900: 1–45. Preview Reference page. 

2017

• Douglas, H.B. 2017. World reclassification of the Cardiophorinae (Coleoptera, Elateridae), based on phylogenetic analyses of morphological characters. ZooKeys 655: 1—130. DOI: 10.3897/zookeys.655.11894 . Reference page. 

2019

• Brunke, A.J., Bouchard, P., Douglas, H.B. & Pentinsaari, M. 2019. Coleoptera of Canada. Pp 361–376 In Langor, D.W. & Sheffield, C.S. (eds.). The Biota of Canada – A Biodiversity Assessment. Part 1: The Terrestrial Arthropods. ZooKeys 819: 520 pp. Reference page. . DOI: 10.3897/zookeys.819.24724 Reference page. 

• Kundrata, R., Kubaczkova, M., Prosvirov, A.S., Douglas, H.B., Fojtikova, A., Costa, C., Bosquet, Y., Alonso-Zarazaga, M.A. & Bouchard, P. 2019. World catalogue of the genus-group names in Elateridae (Insecta, Coleoptera). Part I: Agrypninae, Campyloxeninae, Hemiopinae, Lissominae, Oestodinae, Parablacinae, Physodactylinae, Pityobiinae, Subprotelaterinae, Tetralobinae. Zookeys, 839: 83–154. DOI: 10.3897/zookeys.839.33279 Reference page. 

• Pentinsaari, M., Anderson, R., Borowiec, L., Bouchard, P., Brunke, A., Douglas, H., Smith, A. & Hebert, P. 2019. DNA barcodes reveal 63 overlooked species of Canadian beetles (Insecta, Coleoptera). ZooKeys, 894: 53–150. DOI: 10.3897/zookeys.894.37862 Reference page.