Citation: Solodovnikov, Sergey F.; Solodovnikova, Zoya A.; Zolotova, Evgeniya S.; Yudin, Vasiliy N.; Gulyaeva, Oksana A.; Tushinova, Yunna L.; Kuchumov, Boris M. (2017). Nonstoichiometry in the systems Na2MoO4--MMoO4 (M = Co, Cd), crystal structures of Na3.36Co1.32(MoO4)3, Na3.13Mn1.43(MoO4)3 and Na3.72Cd1.14(MoO4)3, crystal chemistry, compositions and ionic conductivity of alluaudite-type double molybdates and tungstates. Journal of Solid State Chemistry, 253, pp. 121-128.