About this article
Published Online: Apr 25, 2018
Page range: 50 - 71
Received: Dec 04, 2017
Accepted: Mar 13, 2018
DOI: https://doi.org/10.1515/fsmu-2017-0012
Keywords
© 2017 Rein Drenkhan et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Drenkhan, Rein
Estonian University of Life SciencesTartu, Estonia
Adamson, Kalev
Estonian University of Life SciencesTartu, Estonia
Drenkhan, Tiia
Estonian University of Life SciencesTartu, Estonia
Agan, Ahto
Tartu UniversityTartu, Estonia
Laas, Marili
Estonian University of Life SciencesTartu, Estonia