Proceedings of the 14th International Symposium on the Ordovician System
2023
https://kirj.ee/estonian-journal-of-earth-sciences/?v=a57b8491d1d8
Two hundred years of geology education in Estonia
Estonian journal of earth sciences
2020
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p. 175-176
https://kirj.ee/wp-content/plugins/kirj/pub/earth-4-2020-175-176_20201116140304.pdf
http://www.ester.ee/record=b2246661*est