TY JOUR TI ABOUT THE LAGRANGE FORMULATION OF THE ORTHOGONAL-COORDINATE FIELD DYNAMICS. PART I. LAGRANGE SPEED KW Lagrange dynamics KW Lagrange speed KW orthogonal coordinates KW pseudo-Euclidean space KW space deformation JO Bulletin of KSAU AU Rogachevskiy, A.G. AU Loginovskaya, T.N. AU Yakovleva, S.F. PY 2014 IS PB Krasnoyarsk State Agrarian University