Chemical peculiarities of the Silurian-Ordovician and Cambrian-Vendian aquifer systems in Estonia : an overview of hydrochemical studiesKarro, Enn; Marandi, Andres; Vaikmäe, Rein; Uppin, MargeEstonian journal of earth sciences2009 / 4, p. 342-352 : ill https://artiklid.elnet.ee/record=b1944680*est

Conceptual model of groundwater quality for the monitoring and management of the Voronka groundwater body, EstoniaMarandi, Andres; Karro, Enn; Raidla, Valle; Vaikmäe, ReinEstonian journal of earth sciences2012 / p. 328-339 : ill