I. R. Metskhvarishvili, T. E. Lobzhanidze, G. N. Dgebuadze, B. G. Bendeliani, M. R. Metskhvarishvili, M. Sh. Rusia, G. R. Giorganashvili, and V. M. Gabunia, Comparative study of Tl-1223 superconductors prepared by the sol-gel route and solid-state reaction, Low Temp. Phys. 48, 3–6, (2021) [Fiz. Nyzk. Temp. 48, 5-9, (2021)] DOI: https://doi.org/10.1063/10.0008955.