Application of carbon isotopes to the study of the Ordovician and Silurian of the Baltic
Martma, Tõnu
2006
https://digi.lib.ttu.ee/i/?107
https://www.ester.ee/record=b2209327*est
Origin and geochemical evolution of palaeogroundwater in the northern part of the Baltic artesian basin = Paleopõhjavete päritolu ja geokeemiline areng Balti arteesiabasseini põhjaosas
Pärn, Joonas
2018
https://digi.lib.ttu.ee/i/?10917