B.G.Briggs (B.G.Briggs & Ehrend.) 2007 - Garnock-Jones P, Albach D, Briggs BG (2007) Botanical Names in Southern Hemisphere Veronica (Plantaginaceae): Sect. Detzneria, Sect. Hebe, and Sect. Labiatoides. Taxon 56(2): 571-582. Retrieved from http://www.jstor.org/stable/25065812
There is no corrections for Veronica derwentiana subsp. homalodonta yet.