Ordovician of the Eastern Baltic palaeobasin and the Tornquist Sea margin of BalticaMeidla, Tõnu; Ainsaar, Leo; Hints, Olle; Radzevičius, SigitasGeological Society, London, Special Publications2022 / 1-27 p. : ill https://doi.org/10.1144/SP532-2022-141 Reconstructing Late Ordovician carbon cycle variationsPancost, Richard D; Freeman, Katherine H.; Herrmann, Achim D.; Patzkowsky, Mark E.; Ainsaar, Leo; Martma, TõnuGeochimica et cosmochimica acta2013 / p. 433-454 : ill