Assessment of hydropower potential of some existing obstacles on rivers. Case study: Arges-Vedea basin, RomaniaLiana Ioana Vuta, Gabriela Elena Dumitran, Teodor Iliev, Eliza Isabela Tica, Angela Neagoe and Bogdan PopaE3S Web Conf., 551 (2024) 02006DOI: https://doi.org/10.1051/e3sconf/202455102006