Template:Perrie et al., 2003
- Perrie, L.R., Brownsey, P.J., Lockhart, P.J. & Large, M.F. 2003. Evidence for an allopolyploid complex in New Zealand Polystichum (Dryopteridaceae). New Zealand Journal of Botany 41(2): 189–215. DOI: 10.1080/0028825X.2003.9512841
