- https://en.wikipedia.org/wiki/PROBA
- http://ilrs.gsfc.nasa.gov/docs/ESA4S_06_11d.pdf
- http://directory.eoportal.org/pres_PROBA2ProjectforOnBoardAutonomy2.html
- http://swap.sidc.be/swap-old/sdm/SP-SWP-03013_I02_R02.doc
- http://www.esa.int/techresources/ESTEC-Article-fullArticle_par-50_1134728792936.html
- http://microelectronics.esa.int/mpd2007/Presentation_ADPMS_ESA_Microelectronicsdays_A0final.pdf