2008

• Kalkman, V.J. 2008. Taxonomy, behaviour, and habitat of Mesopodagrion and Sinocnemis. Notes on Old World Megapodagrionidae 3. (Odonata). International Journal of Odonatology 11: 185–193.
• Kalkman, V.J.; Clausnitzer, V.; Dijkstra, K.-D.B.; Orr, A.G.; Paulson, D.R.; van Tol, J. 2008. Global diversity of dragonflies (Odonata) in freshwater. Hydrobiologia 595: 351–363.

2010

• Kalkman, V.J.; Choong, C.Y.; Orr, A.G.; Schütte, K. 2010. Remarks on the taxonomy of Megapodagrionidae with emphasis on the larval gills (Odonata). International Journal of Odonatology 13: 119–135.

2011

• Kalkman, V.J.; Villanueva, R.J.T. 2011. A synopsis of the genus Rhinagrion with description of two new species from the Philippines (Odonata: Megapodagrionidae). International Journal of Odonatology 14: 11–31.

2012

• Kalkman, V.J.; Orr, A.G. 2012. The Australian monsoon tropics as a barrier for exchange of dragonflies (Insecta: Odonata) between New Guinea and Australia. Hydrobiologia 693: 55–70.

2013

• Dijkstra, K.-D.B., Kalkman, V.J., Dow, R.A., Stokvis, F.R. & Tol, J. van 2014. Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata). Systematic entomology 39(1): 68–96. DOI: 10.1111/syen.12035 Reference page. 

• Kalkman, V.J.; Theischinger, G. 2013: Generic revision of Argiolestidae (Odonata), with four new genera. International journal of odonatology 16(1): 1–52. DOI: 10.1080/13887890.2012.749450 Reference page. 

2015

• Orr, A.G. & Kalkman, V.J. 2015: Nannophlebia leoboppi sp nov., a new dragonfly species from New Guinea (Odonata: Anisoptera: Libellulidae). Zootaxa 3964(3): 391–395. DOI: 10.11646/zootaxa.3964.3.9 . Preview (PDF) Reference page. 

2016

• Orr, A.G. & Kalkman, V.J. 2016. Two new species of Papuagrion Ris, 1913 (Odonata: Coenagrionidae) from New Guinea with a survey of distribution records for the genus. Zootaxa 4173(1): 18–28. DOI: 10.11646/zootaxa.4173.1.2 . Reference page. 

2017

• Gyeltshen, T., Kalkman, V.J. & Orr, A.G. 2017. Honouring His Royal Highness the Crown Prince of Bhutan: Megalestes gyalsey (Odonata: Synlestidae). Zootaxa 4244(4): 588–594. DOI: 10.11646/zootaxa.4244.4.9 . Full article (PDF) Reference page.