%0 Journal Article %T CALCULATION OF THIN PLATES AND SHELLS USING MULTI-GRID FINITE ELEMENTS WITH FREE BOUNDARIES %A Matveev, A.D. %K composites, elasticity, plates, shells, finite element method, multi-grid finite elements %J Bulletin of KSAU %D 2014 %N %P 3 %I Krasnoyarsk State Agrarian University