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Küppers, Michael; Keller, H.U.; Kührt, E.; A'Hearn, M.F.; Altwegg, K.; Bertrand, R.; Busemann, H.; Capria, M.T.; Colangeli, L.; Davidsson, B.; Ehrenfreund, P.; Knollenberg, J.; Mottola, S.; Rathke, A.; Weiss, P.; Zolensky, M.; Akim, E.; Basilevsky, A.; Galimov, E.; Gerasimov, M.; ... (2009). Triple F - a comet nucleus sample return mission. Experimental astronomy, 23(3), pp. 809-847. Dordrecht: Springer 10.1007/s10686-008-9115-8
Bada, J. L.; Ehrenfreund, P.; Grunthaner, F.; Blaney, D.; Coleman, M.; Farrington, A.; Yen, A.; Mathies, R.; Amudson, R.; Quinn, R.; Zent, A.; Ride, S.; Barron, L.; Botta, O.; Clark, B.; Glavin, D.; Hofmann, B.; Josset, J. L.; Rettberg, P.; Robert, F.; ... (2008). Urey: Mars Organic and Oxidant Detector. Space science reviews, 135(1-4), pp. 269-279. Springer 10.1007/s11214-007-9213-3
Martins, Z.; Hofmann, Beda; Gnos, Edwin; Greenwood, R.C.; Verchovsky, A.; Franchi, I.A.; Jull, A.J.T.; Botta, O.; Glavin, D.P.; Dworkin, J.P.; Ehrenfreund, P. (2007). Amino acid composition, petrology, geochemistry,14C terrestrial age and oxygen isotopes of the Shisr 033 CR chondrite. Meteoritics & planetary science, 42, pp. 1581-1595. Meteoritical Society at the University of Arkansas, Dept. of Chemistry and Biochemistry
