%0 Journal Article %A N. L. Smirnova %A V. S. Kurazhkovskaya %A N. V. Belov %T Relationship between compounds. Composite classes of the tolerance of chemical elements %J Doklady Akademii Nauk %D 1978 %P 598-599 %V 239 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_239_3_a23/ %G ru %F DAN_1978_239_3_a23