@article{PasqualiNotaLangeretal.1999,
  author    = {Pasquali, A. and Nota, A. and Langer, Norbert and Schulte-Ladbeck, R. E. and Clampin, M.},
  title     = {R4 and its circumstellar nebula : evidence for a binary merger?},
  year      = {1999},
  language  = {en}
}
@article{BomansBeckerKleemannetal.2015,
  author    = {Bomans, Dominik J. and Becker, Andrew C. and Kleemann, B. and Weis, K. and Pasquali, A.},
  title     = {Luminous Wolf-Rayet stars at low metallicity},
  series = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015},
  journal   = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-87635},
  pages     = {51 -- 54},
  year      = {2015},
  abstract  = {The evolution of massive stars in very low metallicity galaxies is less well observationally constrained than in environments more similar to the Milky Way, M33, or the LMC. We discuss in this contribution the current state of our program to search for and characterize Wolf-Rayet stars (and other massive emission line stars) in low metallicity galaxies in the Local Volume.},
  language  = {en}
}
@article{HulbertNotaClampinetal.1999,
  author    = {Hulbert, S. and Nota, A. and Clampin, M. and Leitherer, C. and Pasquali, A. and Langer, Norbert and Schulte-Ladbeck, R. E.},
  title     = {HST WEPCII observation of the inner HR car nebula},
  year      = {1999},
  language  = {en}
}