Process systems emgineering : PSE '85 : the use of computers in chemical engineering / organised by the Institution of Chemical Engineers on behalf of the European Federation of Chemical Engineers and held at Robinson College, Cambridge, 31 March-4 April 1985 ; organising committee F.A. Perris ... (et al.). (Institution of Chemical Engineers symposium series 0307-0492 ; Institution of Chemical Engineers symposium series ;, 1985)