Revision of the concept of the orthide brachiopod Cyrtonotella in the Middle Ordovician of the East BalticHints, LindaEstonian journal of earth sciences2014 / p. 63-70 : ill https://artiklid.elnet.ee/record=b2673722*est https://doi.org/10.3176/earth.2014.05 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS