%0 Journal Article %A N. R. Streltsova %A L. V. Ivakina %A P. A. Storozhenko %A B. M. Bulychev %A V. K. Belsky %T An unusual conformation of $18$-crown-$6$ ether in the complex $\mathrm{MgCl}_2\cdot18$-crown-$6$ with %J Doklady Akademii Nauk %D 1986 %P 1373-1376 %V 291 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_291_6_a19/ %G ru %F DAN_1986_291_6_a19