Reference
Ildikó Gyollai, Marta Polgari, Krisztian Fintor, Elemer Pal-Molnar, Friedrich Popp, Christian Koeberl (2017): Microbial activity records in Marinoan Snowball Earth postglacial
transition layers connecting diamictite with cap carbonate (Otavi Group, NW-Namibia) – Austrian Journal of Earth Sciences – 110_1: 4 - 20.