%0 Journal Article %A Nadezhda A. Zhuk %A Elena U. Ipatova %A Boris A. Makeev %A Sergey V. Nekipelov %A Dmitriy S. Beznosikov %A Lubov V. Rychkova %T NEXAFS and FTIR spectroscopy of Co-doped SrBi$_2$Nb$_2$O$_9$ %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2022 %P 5-12 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2022_15_1_a0/ %G en %F JSFU_2022_15_1_a0