Application of photovoltaic cells as a source of energy in unmanned aerial vehicle (UAV) – case studyKarolina Papis, Rafał Figaj, Jakub Kuś, Maciej Żołądek and Michał ZającE3S Web Conf., 173 (2020) 02002DOI: https://doi.org/10.1051/e3sconf/202017302002