%0 Journal Article %A A. A. Martynyuk %T Decompositions and aggregation in systems analysis %J Theoretical and applied mechanics %D 1975 %P 87 %V 1 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_1975_1_1_a9/ %G en %F TAM_1975_1_1_a9