The far-infrared behaviour of Herbig Ae/Be discs: Herschel PACS photometry N. Pascual, B. Montesinos, G. Meeus, J. P. Marshall, I. Mendigutía and G. Sandell A&A, 586 (2016) A6 Published online: 19 January 2016 DOI: 10.1051/0004-6361/201526605