Constraining the LogN-LogS Relation of Far-Infrared Unresolved Sources Using a P(D) Analysis; Application to FIRBACK Maps Obtained by ISOY. Friedmann, F. Bouchet, J. Blaizot and G. LagacheEAS Publications Series, 4 (2002) 357DOI: https://doi.org/10.1051/eas:2002101