Crack resistance of bismuth ferrite films obtained on a flexible substrateShikhgasan Ramazanov, Ştefan Ţălu, Dinara Sobola, Farid Orudzev, Guseyn Ramazanov, Daud Selimov, Pavel Kaspar, Robert Macků and Anton NazarovE3S Web Conf., 295 (2021) 04008DOI: https://doi.org/10.1051/e3sconf/202129504008