Silurian cyathaspidid heterostracans of Northern EurasiaMärss, TiiuEstonian journal of earth sciences2019 / p. 113–146 : ill https://doi.org/10.3176/earth.2019.11 https://www.ester.ee/record=b2246661*est Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS