Authors
Martin Danilovič
National Agricultural and Food Centre ‒ Research Institute of Agroecology, Michalovce
Božena Šoltysová
National Agricultural and Food Centre ‒ Research Institute of Agroecology, Michalovce
© 2017 Martin Danilovič, Helena Hlavatá, Božena Šoltysová, published by National Agricultural and Food Centre
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.