S. Calchi Novati (1,2), G. Covone (3), F. De Paolis (4), M. Dominik
  (5), Y. Giraud-Heraud (6), G. Ingrosso (4), Ph. Jetzer (7), L. Mancini (1,2),
  A. Nucita (4), G. Scarpetta (1,2) F. Strafella (4) and A. Gould (8) (The PLAN
  collaboration) ((1) University of Salerno, (2) INFN, Napoli, (3) INAF - OAC,
  (4) University of Lecce, (5) SUPA, (6) APC, (7) University of Zurich, (8)
  OSU)