Han, M.-Q.; Liu, Y.; Zhang, L.-B.

Eight New Species of Polystichum (subg. Haplopolystichum; Dryopteridaceae) from Limestone Caves in Guangdong and Yunnan, China, With Reference to Species Diversity in the Karst Terrains at High Elevations in Subtropical areas

. Phytotaxa 2018, 365, 145–168.