• Upper Katian (Ordovician) bentonites in the East Baltic, Scandinavia and Scotland Geochemical correlation and volcanic source interpretationKiipli, Tarmo; Dahlqvist, Peter; Kallaste, Toivo; Kiipli, Enli; Nõlvak, JaakGeological Magazine2015 / p. 589 - 602 https://doi.org/10.1017/S001675681400051X https://www.scopus.com/sourceid/26476 https://www.scopus.com/record/display.uri?eid=2-s2.0-84929186042&origin=inward&txGid=304ba935ad1c9b21fba0a99d4acba051 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GEOL%20MAG&year=2015 https://www.scopus.com/record/display.uri?eid=2-s2.0-84929186042&origin=inward&txGid=304ba935ad1c9b21fba0a99d4acba051