Přídolí carbon isotope trend and upper Silurian to lowermost Devonian chemostratigraphy based on sections in Podolia (Ukraine) and the East Baltic areaKaljo, Dimitri; Martma, Tõnu; Grytsenko, Volodymyr; Brazauskas, Antanas; Kaminskas, DonatasEstonian journal of earth sciences2012 / p. 162-180 : ill https://artiklid.elnet.ee/record=b2533830*est