Authors
Božena Šoltysová
National Agricultural and Food Centre − Agroecology Research Institute,, Michalovce, Slovak Republic
Ján Hecl
National Agricultural and Food Centre − Agroecology Research Institute,, Michalovce, Slovak Republic
Ladislav Kováč
National Agricultural and Food Centre − Agroecology Research Institute,, Michalovce, Slovak Republic
Martin Danilovič
National Agricultural and Food Centre − Agroecology Research Institute,, Michalovce, Slovak Republic