Crystal structure and magnetic properties ferrites Ba-Fe-O, Bi-Fe-O, synthesized in NGO “Physics-Sun”Muxammade Sultanxan Payzullaxanov, Uktam Salomov, Akmal Kuchkarov, Olmosbek Mamatov and Abdurashid XolmatovBIO Web Conf., 84 (2024) 05030DOI: https://doi.org/10.1051/bioconf/20248405030