@article{6616,
  author = {F. Bocchino and E. van der Swaluw and R. Chevalier and R. Bandiera},
  title = {The nature of the X-ray halo of the plerion G21.5-0.9 unveiled by XMM-Newton and Chandra},
  year = {2005},
  journal = {Astronomy & Astrophysics},
  volume = {442},
  number = {2},
  pages = {539-548},
  month = {Nov},
  isbn = {0004-6361},
  url = {<Go to ISI>://000232404400020},
  doi = {10.1051/0004-6361:20052870},
  language = {eng},
}