Rare tool marks from the Upper Ordovician of Estonia (Baltica)Vinn, Olev; Toom, UrsulaNeues Jahrbuch für Geologie und Paläontologie - Abhandlungen2016 / p. 221-226 : ill https://doi.org/10.1127/njgpa/2016/0596 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS