Citation: Kolis, J.W.; Schimek, G.L.; Pennington, W.T.; Wood, P.T. (1996). Supercritical ammonia synthesis and characterization of four new alkali metal silver antimony sulfides: M Ag2 Sb S4 and M2 Ag Sb S4 (M=K, Rb). Journal of Solid State Chemistry, 123, pp. 277-284.