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Message * Ėkonomiko-Organizat︠s︡ionnye Problemy Proektirovanii︠a︡ i Primenenii︠a︡ Informat︠s︡ionnykh Sistem Materialy Iv Mezhgosudarstvennoĭ Nauchno-Prakticheskoĭ Konferent︠s︡ii, G. Rostov-Na-Donu, 25 Noi︠a︡bri︠a︡ 1999 G. - 5797202549 - 9785797202547