00320nam a2200109Ia 4500082001800000100001900018245008600037260004600123300000900169650001300178700001900191  a512.943 FRA/E  aFrazer, R. A.  0aElementary Matrices: And Some Applications To Dynamics And Differential Equations  bCambridge University PressaLondon c1963  a416p  aMatrices  aDuncan, W. J.