Structural features of the interblock boundary in the twoslab structure of compounds of the AIILn2B2 IIIO7 (AII = Sr, Ba, Ln, BIII = Al, Fe, Sc, In) type - Yu. O. Titov; N. M. Biliavyna; V. V. Chumak (Reports of the National Academy of Sciences of Ukraine, 2021)