^Goffinet, B.; W. R. Buck; A. J. Shaw (2008). "Morphology and Classification of the Bryophyta". In Bernard Goffinet; A. Jonathan Shaw (eds.). Bryophyte Biology (2nd ed.). Cambridge: Cambridge University Press. pp. 55–138. ISBN978-0-521-87225-6.
^Goffinet, Bernard; William R. Buck (2004). "Systematics of the Bryophyta (Mosses): From molecules to a revised classification". Monographs in Systematic Botany. Molecular Systematics of Bryophytes. 98. Missouri Botanical Garden Press: 205–239. ISBN1-930723-38-5.