Search for: [Subject and Keywords = linear time\-invariant feedback control systems] OR [Subject and Keywords = polynomial matrix systems] OR [Subject and Keywords = row\-column\-reduced polynomial matrices] OR [Subject and Keywords = feedback compensator design] OR [Subject and Keywords = flexible belt device] OR [Title = Proper feedback compensators for a strictly proper plant by polynomial equations] OR [Creator = Callier, Frank M.] OR [Creator = Kraffer, Ferdinand]