Citation: Smart, Megan M.; Smith Pellizzeri, Tiffany M.; Morrison, Gregory; McMillen, Colin D.; zur Loye, Hans-Conrad; Kolis, Joseph W. (2021). Ferrite Materials Containing Kagom\'e Layers: Chemistry of Ba2Fe11Ge2O22 and K2Co4V9O22 Hexaferrites. Chemistry of Materials, 33, pp. 2258-2266.