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Bibring, J.-P.; Taylor, M.G.G.T.; Alexander, C.; Auster, U.; Biele, J.; Finzi, A. Ercoli; Goesmann, F.; Klingehoefer, G. και άλλοι. (31 July 2015). «Philae's First Days on the Comet - Introduction to Special Issue». Science349 (6247): 493. doi:10.1126/science.aac5116. PMID26228139. Bibcode: 2015Sci...349..493B.
nih.gov
ncbi.nlm.nih.gov
Bibring, J.-P.; Taylor, M.G.G.T.; Alexander, C.; Auster, U.; Biele, J.; Finzi, A. Ercoli; Goesmann, F.; Klingehoefer, G. και άλλοι. (31 July 2015). «Philae's First Days on the Comet - Introduction to Special Issue». Science349 (6247): 493. doi:10.1126/science.aac5116. PMID26228139. Bibcode: 2015Sci...349..493B.
