Moraes, P.L.R.D. (2020)

Nomenclatural notes on the taxonomic identity of Sprengel’s Erigeron dubius, E. montevidensis, E. resinosus and E. filiformis (Asteraceae)

. Phytotaxa 438 (2): 95–106. https://doi.org/10.11646/phytotaxa.438.2.3