author        = "Exter, K. and  van de Steene, G. and  van Hoof, P. and 
                       Barlow, M. and  Sibthorpe, B. and  Ueta, T. and  Peris, V.
                       and  Groenewegen, M. A. T. and  Blommaert, J. A. D. L. and 
                       Matsuura, M. and  De Meester, W. and  Ferland, G. J. and 
                       Gear, W. K. and  Gomez, H. L. and  Hargrave, P. C. and 
                       Huygen, E. and  Ivison, R. J. and  Jean, C. and  Leeks, S.
                       J. and  Lim, T. L. and  Olofsson, G. and  Polehampton, E.
                       T. and  Regibo, S. and  Royer, P. and  Swinyard, B. M. and 
                       Vandenbussche, B. and  van Winckel, H. and  Waelkens, C.
                       and  Wesson, R.",
      title         = "{A HERSCHEL study of PNe}",
      year          = "2011",