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\bibitem{Rykov_etal1994} {\textquotedblleft}\textit{Structural aspects and antiferromagnetic ordering in the {\textquotedblleft}123{\textquotedblright} derivative LnSr$_{2}$Cu$_{2}$Ga$_{1-x}$Fe$_{x}$O$_{7-\delta}$ (Ln = Y, Ho)}{\textquotedblright}. Rykov A, Caignaert V, Van Tendeloo G, Greneche JM, Studer F, Nguyen N, Ducouret A, Bonville P, Raveau B, Journal of solid state chemistry \textbf{113}, 94 (1994)

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