Tartu Ülikool2026-03-312026-03-311989ARH PT-1753https://hdl.handle.net/10062/119929etAttribution-NonCommercial-NoDerivs 3.0 Estoniahttps://creativecommons.org/licenses/by-nc-nd/3.0/ee/pisitrükisedküsimustikudperekonnauuringudOther