title: Short term variability of pulsations in the X-ray flux from cygnus X1.
authors.affiliation: Mullard Space Science Laboratory, University College London, Holmbury St Mary, Near Dorking, Surrey.
authors.forename: A M
authors.initials: AM
authors.lastname: Cruise
authors.forename: A C
authors.initials: AC
authors.lastname: Newton
authors.forename: C E
authors.initials: CE
authors.lastname: Chapman