1. National Transportation Safety Board, Aircraft Accident Report; American Airlines, Inc. DC-10-10,ChicagoO'Hare International Airport, Chicago, Illinois,May25,1979- pp.23-24&54-55;NTSB-AAR-79-17.
2. Gully, Dr. Sol. State-of -the-Art Theory Application, ibid; pp.162-165.
3. A survey of design methods for failure detection in dynamic systems