Dokl. Akad. Nauk SSSR, 1961 Volume 137, Number 6,Pages 1361–1363(Mi dan24926)
CHEMISTRY
The intersection of stable and non-equilibrium tetrahedra in a mutual seven-component system of $\mathrm{Li}$, $\mathrm{Na}$,
$\mathrm{Rb}$, $\mathrm{Tl}\parallel\mathrm{Br}$, $\mathrm{Cl}$, $\mathrm{NO}_3$, $\mathrm{SO}_4$