2779 20160701171710.0 10.1017/S1743921312010666 DOI ASTROimport-936 van Hoof, P. A. M. 2012 Herschel observations of planetary nebulae in the MESS key program In this paper we give a progress report on the Herschel observations of planetary nebulae that are carried out as part of the MESS guaranteed time key program. Barlow, M. J. Van de Steene, G. C. Exter, K. M. Wesson, R. Ottensamer, R. Lim, T. L. Sibthorpe, B. Matsuura, M. Ueta, T. Van Winckel, H. Waelkens, C. IAU Symposium 283 2012 41-44 http://esoads.eso.org/abs/2012IAUS..283...41V published in NONREF