Authors
Ján Gaduš
Slovak University of Agriculture in Nitra
Ján Slobodník
BioRent, Sládkovičovo
© 2017 Natalia Głowacka, Ján Gaduš, Ján Slobodník, published by Slovak University of Agriculture in Nitra
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.