Citation: Bongers, P.F.; Omloo, W.P.F.A.M.; van Bruggen, C.F.; Koopstra, J.; Wiegers, G.A.; Jellinek, F. (1968). Structures and Magnetic Properties of Some Metal(I) Chromium(III) Sulfides and Selenides. Journal of Physics and Chemistry of Solids, 29, pp. 977-984.