Data presented here are based on observations by the Infrared Space Observatory (ISO). ISO is an ESA project with instruments funded by ESA member states (especially the PI countries: France, Germany, the Netherlands and the United Kingdom) and with the participation of ISAS and NASA.

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Data and related papers about the ELAIS southern survey are available at: http://www.fis.uniroma3.it/~ELAIS_S

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...))

A similar approach was adopted in the previous estimates of the mid-IR type-1 AGN LF by Matute et al. (2002), and of the X-ray AGN LF by La Franca et al. (2002, 2005).

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