• δ13C chemostratigraphy of the Middle and Upper Ordovician sucession in the Tartu-453 drillcore, southern Estonia, and the significance of the HICEBauert, Heikki; Ainsaar, Leho; Põldsaar, Kairi; Sepp, SiimEstonian journal of earth sciences2014 / p. 195-200 : ill https://artiklid.elnet.ee/record=b2705791*est https://doi.org/10.3176/earth.2014.18 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-84919393250&origin=inward&txGid=dd1947696d16ce3a91dbd2d5398ca3cb https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000346296000003