@article{NicholsHuenemoerderCorcoranetal.2015,
  author    = {Joy Nichols and David P. Huenemoerder and Michael F. Corcoran and Wayne Waldron and Yael Naze and Andy M. T. Pollock and Anthony F. J. Moffat and Jennifer Lauer and Tomer Shenar and Christopher M. P. Russell and Noel D. Richardson and Herbert Pablo and Nancy Remage Evans and Kenji Hamaguchi and Theodore Gull and Wolf-Rainer Hamann and Lida Oskinova and Rosina Ignace and Jennifer L. Hoffman and Karen Tabetha Hole and Jamie R. Lomax},
  title     = {A COORDINATED X-RAY AND OPTICAL CAMPAIGN OF THE NEAREST MASSIVE ECLIPSING BINARY, delta ORIONIS Aa. II. X-RAY VARIABILITY},
  journal   = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
  volume    = {809},
  number    = {2},
  doi       = {10.1088/0004-637X/809/2/133},
  year      = {2015},
}