?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Andrew+Harold+Noble&rft.au=Reid%2C+Andrew+Harold+Noble&rft.aulast=Reid&rft.degree=Doctoral&rft.tpages=300&rft.inst=UCL+(University+College+London)&rft.title=The+variability+of+three+O-type+stars%3A+zeta+Ophiuchi%3B+zeta+Puppis%3B+and+HD+93521&rft.date=1994