Barwicki, J., Kuboń, M. and Marczuk, A. (2017) “New Developments of Solar Energy Utilization in the Aspect of EU Directives”, Agricultural Engineering , 21(2), pp. 15-24. Available at: https://agriceng.ptir.org/index.php/AgricEng/article/view/2 (Accessed: 10August2022).