• New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of BaltoscandiaNõlvak, Jaak; Bauert, GarmenEstonian journal of earth sciences2015 / p. 218-224 : ill https://artiklid.elnet.ee/record=b2739527*est https://doi.org/10.3176/earth.2015.28 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-84939184077&origin=inward&txGid=598d92d456a060c3901e84c22ada3e0f https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000360713500003