@article{Guerrero2015,
  author    = {Mart{\´i}n A. Guerrero},
  title     = {Planetary nebulae and Their Central Stars in X-rays},
  journal   = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015},
  pages     = {263 -- 266},
  year      = {2015},
}