[en] Compounds of type A₂sup(II)Bsub(0.5)sup(I)Bsub(0.5)sup(III)Wsup(VI)O₆ can be obtained with Asup(II) = Ba; Bsup(I) = Li, Na and Bsup(III) = La, Nd, Sm, Gd, Y, In, Sc just as with Asup(II) = Sr; Bsup(I) = Li and Bsup(III) = La, Nd, Sm, Gd, Y, In (all cubic ordered perovskites). For the cubic perovskites Sr₂Nasub(0.5)Lasub(0.5)WO₆ and Sr₂Nasub(0.5)Ndsub(0.5)WO₆ additional superlattice reflections are observed (a approximately equal to 16.4 A). The compounds Sr₂Nasub(0.5)Bsub(0.5)sup(III)WO₆ crystallize with Bsup(III) = Sm, Gd in a monoclinic and with Bsup(III) = Y, In in a rhombic distorted perovskite lattice. For the perovskites with A = Sr - dependent on ionic radii of the B ions - two different lattice types are present. (author)