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Wille, Martin; Nägler, Thomas; Lehmann, B.; Schröder, S.; Kramers, Jan (2008). Hydrogen sulphide release to surface waters at the Precambrian/Cambrian boundary. Nature, 453(7196), pp. 767-769. London: Macmillan Journals Ltd. 10.1038/nature07072
Wille, M.; Kramers, J. D.; Nägler, T. F.; Beukes, N. J.; Schröder, S.; Meisel, Th.; Lacassie, J. P.; Voegelin, A. R. (2007). Evidence for a gradual rise of oxygen between 2.6 and 2.5 Ga from Mo isotopes and Re-PGE signatures in shales. Geochimica et cosmochimica acta, 71(10), pp. 2417-2434. New York, N.Y.: Elsevier Science 10.1016/j.gca.2007.02.019
Schröder, S.; Schreiber, B.C.; Amthor, J. E.; Matter, Albert (2004). Stratigraphy and environmental conditions of the terminal Neoproterozoic-Cambrian Period in Oman: evidence from sulphur isotopes. Journal of the Geological Society, 161(3), pp. 489-499. Geological Society of London 10.1144/0016-764902-062
