1. Observations of interstellar formamide: availability of a prebiotic precursor in the galactic habitable zone;Adande;Astrobiology,2013
2. Astronomical identification of CN-, the smallest observed molecular anion;Agundez;Astron. Astrophys.,2010
3. Cyclopropenyl cation – the simplest Huckel׳s aromatic molecule – and its cyclic methyl derivatives in Titan׳s upper atmosphere;Ali;Planet. Space Sci.,2013
4. Ali, A., Chornay, D., Sittler Jr., E.C., Canosa, A., 2010. Gas-phase prebiotic chemistry on Titan: specific laboratory kinetic measurements on the formation rates and mechanisms for molecular anions observed by the Cassini mission: In: Proceedings of the Titan Through Time: A Workshop on Titan׳s Formation, Evolution and Fate. NASA, Goddard Space Flight Center, p. 79.
5. Balsiger, H., Altwegg, K., et al., 2006. Rosetta Orbiter Spectrometer for Ion and Neutral Analysis ROSINA. ESA SP-1165.