Citation: Iordanidis, L.; Kanatzidis, M.G.; Aitken, J.A.; Evain, M. (2002). Na Ce P2 Se6, Cu0.4 Ce1.2 P2 Se6, Ce4 (P2 Se6)3, and the incommensurately modulated Ag Ce P2 Se6: new selenophosphates featuring the ethane-like (P2 Se6)(4-) anion. Inorganic Chemistry, 41, pp. 180-191.