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Fig. C.1


Spectral energy distribution shapes for most of our sources. Literature observations are shown as filled circles, whereas our PACS observations are marked with crosses and drawn in a different hue (see Table C.1). The maxima of the SEDs lie between 10-16 and 10-19 W cm-2 for all objects and thus, for better shape vizualisation, the SEDs are offset by several orders of magnitude. Objects are shown in the sequence of decreasing evolutionary parameter .

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