Guiry, M.D. & Guiry, G.M. (2019). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Antithamnion pylaisaei f. norvegica Kjellman, 1883. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=554069 on 2019-03-27
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