%0 Journal Article %A Predrag Mimović %A Ana Krstić %A Milena Jakšić %T Dynamic Analysis of the Efficiency of Research and Development Systems of South-European Countries %J Yugoslav journal of operations research %D 2019 %P 415 %V 29 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/YJOR_2019_29_3_a7/ %G en %F YJOR_2019_29_3_a7