Authors
Katarzyna Szwedziak
Department of Biosystems Engineering, Opole University of Technology, Poland
Ewa Polańczyk
Department of Biosystems Engineering, Opole University of Technology, Poland
© 2018 Katarzyna Szwedziak, Ewa Polańczyk, published by Polish Society of Agricultural Engineering
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.