@article{Hawcroft:5491,
      author        = "Hawcroft, C. and Sana, H. and Mahy, L. and Sundqvist, J.
                       O. and Abdul-Masih, M. and Bouret, J. C. and Brands, S. A.
                       and de Koter, A. and Driessen, F. A. and Puls, J.",
      title         = "{Empirical mass-loss rates and clumping properties of
                       Galactic early-type O supergiants}",
      year          = "2021",
}