.IFAC Sympoium (1988 : Fulda)：Safety of computer control systems 1988 : safety related computers in an expanding market : proceedings.Pergamon Pr.,1988.
W. J. Quirk.Safety of computer control systems( 5th :1986 : France)：trends in safe real time computer systems : proceedings of the Fifth IFAC workshop Sarlat, France, 14-17 October 1986.Pergamon Pr.,1986.
Safety of computer control systems( 5th :1986 : France)：trends in safe real time computer systems : proceedings of the Fifth IFAC workshop Sarlat, France, 14-17 October 1986
