Citation: Treece, Megan M.; Kelly, Jordan C.; Rosello, Kate E.; Craig, Andrew J.; Aitken, Jennifer A. (2023). Accurate X-ray diffraction data required for proper evaluation of bond valence sums and global instability indexes: redetermination of the crystal structures of diamond-like Cu2CdSiS4 and Cu2HgSnS4 as a case study.. Acta crystallographica. Section C, Structural chemistry, 79, pp. -.