Comparison of Bi2O3-targets produced by thermal evaporation and RF magnetron sputtering Birgit Kindler, Bettina Lommel, Elif Celik Ayik, Annett Huebner, Jutta Steiner and Vera Yakusheva EPJ Web Conf., 285 (2023) 10001 Published online: 22 June 2023 DOI: 10.1051/epjconf/202328510001