E.Yu. Turaev, S.Ya. Shaimardonova, Sh.S. Zamonova, and A.O Khodzhamov, “Application Of Mössbauer Spectroscopy To Determine The Parameters Of The EFG Tensor At Barium Nodes For УBA2CU3O7-X”, tajas, vol. 3, no. 5, pp. 76–80, May 2021.