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Fig. 6.

image

Median spectral index as a function of flux density from the ATESP sample (, diamond), Bolton et al. (2004) sample (), the Bright (Massardi et al. 2011) and Faint (Bonavera et al. 2011) PACO samples (, asterisks). The 9C (triangles) and 10C (squares) survey points () in Whittam et al. (2013) are also shown for comparison.

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