@article{article_137663, title={New Photovoltaic System with Higher Effectivity}, journal={Tarım Makinaları Bilimi Dergisi}, volume={4}, pages={231–236}, year={2008}, author={Lıbra, Martin and Poulek, Vladislav and Bıcan, Petr and Novotny, Radek}, number={3}, publisher={Tarım Makinaları Derneği}