FERROELECTRIC PHASE TRANSITIONS IN IONIC CONDUCTORS BASED ON BISMUTH VADANATE Article Politova E.D., Fortal'nova E.A., Kaleva G.M., Mosunov A.V., Andronova L.I., Andropova S.A., Safronenko M.G., Venskovskii N.U. Physics of the Solid State. Vol. 51. 2009. P. 1443-1448
