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3. Lutz, D. 2015,Herschel-PACS document PICC-ME-TN-033, v2.2, http://herschel.esac.esa.int/twiki/pub/Public/PacsCalibrationWeb/bolopsf_22.pdf
4. Okumura, K. 2010,Herschel-PACS document SAp-PACS-KO-0716-10 Faint linear artefact in PACS photometer
5. Ott, S. 2010, in Astronomical Data Analysis Software and Systems XIX, eds. Y. Mizumoto, K.-I. Morita, & M. Ohishi, ASP Conf. Ser., 434, 139