Hirv, TanelPiirsoo, Marko2024-01-092024-01-092023https://hdl.handle.net/10062/94874https://doi.org/10.58009/aere-perennius0076Attribution-NonCommercial-ShareAlike 3.0 Estoniahttp://creativecommons.org/licenses/by-nc-sa/3.0/ee/