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Conservatoire botanique national des Pyrénées et de Midi-Pyrénées

Hallingbäck, T., UCN, Hodgetts, N., SSC Bryophyte Specialist Group, 2000 . Mosses, liverworts and hornworts : status survey and conservation action plan for bryophytes. IUCN (international union for conservation of nature and natural resources), [S.l.].