Template:Korotkova et al., 2010
- Korotkova, N., Zabel, L. Quandt, D. & Barthlott, W.A. 2010. A phylogenetic analysis of Pfeiffera and the reinstatement of Lymanbensonia as an independently evolved lineage of epiphytic Cactaceae within a new tribe Lymanbensonieae. Willdenowia 40(2): 151–172, S1–S4. DOI: 10.3372/wi.40.40201