STRUCTURE, MICROSTRUCTURE, AND FUNCTIONAL PROPERTIES OF MODIFIED SODIUM NIOBATE CERAMICS СтатьяPolitova E.D., Kaleva G.M., Mosunov A.V., Sadovskaya N.V., Fortalnova E.A., Shur V.Y., Ushakov A.D., Faizullin M.Z.Ferroelectrics. Том 618. 2024. С. 1422-1430