• Feasibility study of a local power supply system for sparsely populated areas in EstoniaVaimann, Toomas; Rassõlkin, Anton; Kallaste, Ants; Märss, MaidoAgronomy research2016 / p. 1720-1729 : ill http://www.ester.ee/record=b1787401*est https://www.scopus.com/sourceid/21100201050 https://www.scopus.com/record/display.uri?eid=2-s2.0-84995567074&origin=inward&txGid=752bc764a60bf26d6e363edfeeb13275