Citation: Arakcheeva, A.V.; Ivanov, I.T. (1993). Crystal structure of a phase of disomatic type of a variable composition CaAl(Al, V, M(I))2 (V, M(II)) (Si, Al)2O10, where M(I)=Mg, M(II)=Al,Fe.Mn.Ti, Mg; and its polytype modifications and structural homologues. Kristallografiya, 38, pp. 144-161.