Hess, Sebastian; Frahm, Jan-Peter; Theisen, Inge (2005). "Evidence of Zoophagy in a Second Liverwort Species, Pleurozia purpurea". The Bryologist. 108 (2): 212–218. doi:10.1639/6. S2CID85079354.
Hess, Sebastian; Frahm, Jan-Peter; Theisen, Inge (2005). "Evidence of Zoophagy in a Second Liverwort Species, Pleurozia purpurea". The Bryologist. 108 (2): 212–218. doi:10.1639/6. S2CID85079354.