1. Chair of Horticulture, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
2. Botanical Garden, University of Tartu, Tartu, Estonia
3. Chair of Soil Science, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
4. Chair of Rural Building and Water Management, Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Tartu, Estonia