@article{Reig:2010,
  author  = "P. Reig and A. Słowikowska and A. Zezas and P. Blay",
  title   = "Correlated optical/X-ray variability in the high-mass X-ray binary SAX J2103.5+4545",
  journal = "Monthly Notices of the Royal Astronomical Society",
  volume  = "Vol. 401",
  number  = "no 1",
  pages   = "55--66",
  year    = "2010",
}