@article{Löhmer:2005,
  author  = "O. Löhmer and W. Lewandowski and A. Wolszczan and R. Wielebiñski",
  title   = "Shapiro delay in the PSR J1640+2224 binary system",
  journal = "Astrophysical Journal",
  volume  = "Vol. 621",
  pages   = "388--392",
  year    = "2005",
}