bpirselova@ukf.sk
rkuna@ukf.sk
rndr.peter.lukac@gmail.com
havrlentova@vurv.sk
© 2016 Beáta Piršelová, Roman Kuna, Peter Lukáč, Michaela Havrlentová, published by National Agricultural and Food CentreThis work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.