Hints, O.; Kallaste, T.; Kiipli, T. (1997). Mineralogy and micropalaeontology of the Kinnekulle altered volcanic ash bed (Ordovician) at Pääsküla, North Estonia. Proceedings of the Estonian Academy of Sciences, Geology. 46(3): 107-118.
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Hints, O.; Kallaste, T.; Kiipli, T.
1997
Mineralogy and micropalaeontology of the Kinnekulle altered volcanic ash bed (Ordovician) at Pääsküla, North Estonia
Proceedings of the Estonian Academy of Sciences, Geology