@article{YJOR_1994_4_2_a2,
     author = {Du\v{s}an Malba\v{s}ki and Danilo Obradovi\'c},
     title = {CLAS - {A} {Formal} {Aid} to {Data} {Elements} {Identification}},
     journal = {Yugoslav journal of operations research},
     pages = {159 },
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_1994_4_2_a2/}
}