%0 Journal Article %A Dušan Malbaški %A Danilo Obradović %T CLAS - A Formal Aid to Data Elements Identification %J Yugoslav journal of operations research %D 1994 %P 159 %V 4 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/YJOR_1994_4_2_a2/ %G en %F YJOR_1994_4_2_a2