• A sparsely encrusted hardground with abundant Trypanites borings from the Llandovery of the Velise River, western Estonia (Baltica)Vinn, Olev; Toom, UrsulaEstonian journal of earth sciences2016 / p. 19-26 : ill https://artiklid.elnet.ee/record=b2760752*est https://doi.org/10.3176/earth.2016.01 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-84959534455&origin=inward&txGid=407b4f0675a13b085bffb012a4939cd1 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000372295200002