@article{ValoriDemoulinPariatetal.2013,
  author    = {Gherarod Valori and Pascal Demoulin and E. Pariat and S. Masson},
  title     = {Accuracy of magnetic energy computations},
  journal   = {Astronomy and astrophysics : an international weekly journal},
  volume    = {553},
  number    = {2},
  doi       = {10.1051/0004-6361/201220982},
  year      = {2013},
}