Hubers, M.; Kerp, H. (2012). "Oldest known mosses discovered in Mississippian (late Visean) strata of Germany". Geology. 40 (8): 755–758. Bibcode:2012Geo....40..755H. doi:10.1130/G33122.1.
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Hubers, M.; Kerp, H. (2012). "Oldest known mosses discovered in Mississippian (late Visean) strata of Germany". Geology. 40 (8): 755–758. Bibcode:2012Geo....40..755H. doi:10.1130/G33122.1.