Stalking the fourth domain in metagenomic data: searching for, discovering, and interpreting novel, deep branches in marker gene phylogenetic trees
PLOS ONE (2011) - Comments
pubmed: 21437252  doi: 10.1371/journal.pone.0018011  issn: 1932-6203 

Dongying Wu, Martin Wu, Aaron Halpern, Douglas B. Rusch, Shibu Yooseph, Marvin Frazier, J. Craig Venter, Jonathan A. Eisen