@article{Ferraro:2012,
  author  = "F. Ferraro and R. Mignani and C. Pallanca and E. Dalessandro and B. Lanzoni and A. Pellizzoni and A. Possenti and M. Burgay and F. Camilo and N. D'Amico",
  title   = "Constraining the optical emission from the double pulsar system J0737-3039",
  journal = "Astrophysical Journal",
  volume  = "Vol. 749",
  number  = "no. 1",
  pages   = "[6]",
  year    = "2012",
}