Authors
Štefan Tóth
National Agricultural and Food Centre, Lužianky, Slovak Republic
Katarína Klemová
National Agricultural and Food Centre, Lužianky, Slovak Republic
Pavol Porvaz
National Agricultural and Food Centre, Lužianky, Slovak Republic
Michal Procházka
Košice, Slovak Republic
Ivan Kron
University of Prešov, Slovak Republic