Citation: Jolibois, B.; Laplace, G.; Abraham, F.; Nowogrocki, G. (1981). Monoclinic-trigonal transition in some M(I)3 M'(III) (S O4)3 compounds: The high temperature form of (N H4) In (S O4)3 _cod_database_code 1004126. Journal of Solid State Chemistry, 40, pp. 69-74.