Template:Armstrong & de Lange, 2005
- Armstrong, T.T.J. & de Lange, P.J. 2005. Conservation genetics of Hebe speciosa (Plantaginaceae) an endangered New Zealand shrub. Botanical Journal of the Linnean Society 149(2): 229–239. DOI: 10.1111/j.1095-8339.2005.00437.x