Template:Der, Thomson, Stratford & Wolf, 2009
- Der, J.P., Thomson, J.A., Stratford, J.K. & Wolf, P.G. 2009. Global chloroplast phylogeny and biogeography of bracken (Pteridium; Dennstaedtiaceae). American Journal of Botany 96(5): 1041–1049. DOI: 10.3732/ajb.0800333