Authors: Hofstra, DE Clayton, J Green, JD Adam, KD

Citation: De. Hofstra et al., RAPD profiling and isozyme analysis of New Zealand Hydrilla verticillata, AQUATIC BOT, 66(2), 2000, pp. 153-166

Authors: Hofstra, DE Clayton, J Green, JD Auger, M

Citation: De. Hofstra et al., Competitive performance of Hydrilla verticillata in New Zealand, AQUATIC BOT, 63(3-4), 1999, pp. 305-324

Authors: Hofstra, DE Clayton, JS Champion, PD Green, JD

Citation: De. Hofstra et al., Distribution and density of vegetative hydrilla propagules in the sediments of two New Zealand lakes, J AQUAT PL, 37, 1999, pp. 41-44

Authors: Wells, RDS Hall, JA Clayton, JS Champion, PD Payne, GW Hofstra, DE

Citation: Rds. Wells et al., The rise and fall of water net (Hydrodictyon reticulatum) in New Zealand, J AQUAT PL, 37, 1999, pp. 49-55