author        = "Martayan, C. and  Blomme, R. and  Le Bouquin, J.-B. and 
                       Merand, A. and  Montagnier, G. and  Selman, F. and  Girard,
                       J. and  Fox, A. and  Baade, D. and  Frémat, Y. and  Lobel,
                       A. and  Martins, F. and  Patru, F. and  Rivinius, T. and 
                       Sana, H. and  Štefl, S. and  Zorec, J. and  Semaan, T.",
      title         = "{High-angular resolution observations of the Pistol star}",
      year          = "2011",