%0 Journal Article %T APPROBATION OF ECONOMIC AND MATHEMATICAL MODELS IN ACTIVITY OF THE ENTERPRISES WITH THE HELP OF USING MICROSOFT EXCEL AND MATHCAD PROGRAMS %A Chikina, E.D. %A Shevchenko, M.. %K economic and mathematical modeling, Monge-Cantarovitch's problem, optimization model, planning %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2016 %N 1 %P 7 %I Belgorod State Technological University named after V.G. Shukhov