Bergey's manual of systematic bacteriology. Volume 4, The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae and Planctomycetes. 2nd ed. New York : Springer, 2011. xxvi, 949 s. ISBN 978-0-387-95042-6.