SEM imaging and XPS characterization of doped PVDF fibersTereza Smejkalová, Ştefan Ţălu, Rashid Dallaev, Klára Částková, Dinara Sobola and Anton NazarovE3S Web Conf., 270 (2021) 01011DOI: https://doi.org/10.1051/e3sconf/202127001011