%0 Journal Article %A B. G. Zaslavski %T Non-negative controls for populations and society-size dynamics %J Doklady Akademii Nauk %D 1983 %P 43-46 %V 269 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_269_1_a9/ %G ru %F DAN_1983_269_1_a9