Wolf M, Chen S, Song J, Ankenbrand M, Müller T.

PLoS One. 2013 Jun 24;8(6):e66726. doi:10.1371/journal.pone.0066726

Compensatory base changes in ITS2 secondary structures correlate with the biological species concept despite intragenomic variability in ITS2 sequences--a proof of concept.

The CBC Species Concept