Klenner, F., F. Postberg, J. Hillier, N. Khawaja, M. L. Cable, B. Abel, S. Kempf, C.R. Glein, J.I. Lunine, R. Hodyss, R. Reviol and F. Stolz (2020), Discriminating Abiotic and Biotic Fingerprints of Amino Acids and Fatty Acids in Ice Grains Relevant to Ocean Worlds, Astrobiology 20 (10): 1168-1184. doi:10.1089/ast.2019.2188

Klenner, F., F. Postberg, J. Hillier, N. Khawaja, R. Reviol, F. Stolz, M. L. Cable, B. Abel, and L. Nölle (2020), Analog Experiments for the Identification of Trace Biosignatures in Ice Grains from Extraterrestrial Ocean Worlds, Astrobiology 20 (2). doi:10.1089/ast.2019.2065.

Khawaja, N., F. Postberg, J. Hillier, F. Klenner, S. Kempf, L. Nölle, R. Reviol, Z. Zou, and R. Srama (2019), Low-mass nitrogen-, oxygen-bearing, and aromatic compounds in Enceladean ice grains, MNRAS, 489(4), 5231–5243, doi:10.1093/mnras/stz2280.

Khawaja, N., F. Postberg, J. Hillier, F. Klenner, L. Nölle, and R. Reviol (2019), Astrobiologically relevant precursor organic compounds from the subsurface ocean of Enceladus, in EPSC Abstracts Vol. 13, EPSC-DPS2019-474.

Khawaja, N., F. Postberg, J. Hillier, F. Klenner, S. Kempf, L. Nölle, R. Reviol, Z. Zou, and R. Srama (2019), Detection of low mass amines, carbonyls and aromatics from within Enceladus – suitable precursors for biologically-relevant hydrothermal synthesis, in AGU Fall Meeting Abstracts, P24A-06.

Klenner, F., F. Postberg, J. Hillier, N. Khawaja, R. Reviol, and R. Srama (2019), Calibrating Impact Ionization Detectors for Hypervelocity Water Ice Grains from Ocean Worlds, in EPSC Abstracts Vol. 13, EPSC-DPS2019-250

Klenner, F., F. Postberg, J. Hillier, N. Khawaja, R. Reviol, R. Srama, B. Abel, F. Stolz, and S. Kempf (2019), Analogue spectra for impact ionization mass spectra of water ice grains obtained at different impact speeds in space, Rapid Communications in Mass Spectrometry, 33(22), 1751–1760, doi:10.1002/rcm.8518.

Frank Postberg, Nozair Khawaja,… Rene Reviol et al. Macromolecular organic compounds from the depths of Enceladus. Nature 558, 564 – 568 (2018).

Fabian Klenner, Frank Postberg, Ferdinand Stolz, Nozair Khawaja, René Reviol. Analog Mass Spectra of Astrobiologically Relevant Organic Material for Spaceborne Mass Spectrometers. European Astrobiology Network Association (EANA) Conference, Berlin, Germany (2018).

Fabian Klenner, Frank Postberg, Nozair Khawaja, Rene Reviol. The Heidelberg Analog Experiment for Spaceborne Mass Spectrometers. Advances in Space Mass Spectrometry for the Search of Extraterrestrial Signs of Life, Orleans, France (2018).

Nozair Khawaja,… Rene Reviol et al. Enceladus—A potentially habitable ocean world in the Solar System. Interdisciplinary Origin of Life Meeting (IOoL), Düsseldorf, Germany (2018).

Nozair Khawaja, Frank Postberg, Rene Reviol et al. Complex macromolecular organic structure from the subsurface ocean of Enceladus. European Astrobiology Network Association (EANA) Conference, Berlin, Germany (2018).

Nozair Khawaja, Frank Postberg, Fabian Klenner, Lenz Nölle, Rene Reviol. Cassini’s mass spectrometers find complex organic material in ice grains from the subsurface ocean of Enceladus. Advances in Space Mass Spectrometry for the Search of Extraterrestrial Signs of Life, Orleans, France (2018)

Postberg Frank, Khawaja Nozair,…Rene Reviol  et al. Macromolecular organic compounds emerging from the Enceladus ocean. European Planetary Science Congress (EPSC), Berlin, Germany (2018).

Frank Postberg, Nozair Khawaja,... Rene Reviol et al. Macromolecular organic compounds from Enceladus. COSPAR, Pasadena, California, USA (2018).

Frank Postberg, Nozair Khawaja,... Rene Reviol et al. Macromolecular organic compounds from Enceladus. COSPAR, Pasadena, California, USA (2018).

Frank Postberg, Nozair Khawaja, Lenz Nölle, Rene Reviol From a hydrothermal core into space: life and fate of Enceladean organic molecules. AGU Fall Meeting, Washington, D.C., USA (2018).

Fabian Klenner ... Rene Reviol et al. (2017) Reproducing impact ionization mass spectra of E and F ring ice grains at different impact speeds. EPSC, Riga, Latvia (2017).

Fabian Klenner .... Rene Reviol et al. (2017) Mass spectrometry of astrobiologically relevant organic material – Implications on future space missions to ocean worlds in the outer Solar System. 51^st ESLAB Symposium, Noordwijk, Netherlands (2017).

Fabian Klenner, René Reviol & Frank Postberg. Reproducing impact ionization mass spectra of icy analogue materials at different impact speeds. EGU, Vienna, Austria (2017).

Nozair Khawaja, Frank Postberg, Rene Reviol et al. The Latest on Enceladus - An Active Ocean World in the Solar System. ICASE, Islamabad, Pakistan (2017)

N. Khawaja, F. Postberg, Rene Reviol et al. Organic compounds in the ice grains from the subsurface ocean of Enceladus. ESLAB Symposium: Extreme Habitable Worlds, European Space Agency ESA/ESTEC Netherland (2017).

Khawaja, N., Postberg, F., Reviol, R., Klenner, F., Nölle, L. & Srama, R. (2015) Organic compounds from Enceladus’ sub-surface ocean as seen by CDA. Conference Paper, European Planetary Science Congress (EPSC), October 2015, Nantes, France.

Khawaja, N., Postberg, F., Reviol, R., Nölle, L., Klenner, F. & Srama, R. (2015) Identification of Organics in Ice Grains from Enceladus. Conference Paper, AGU Fall Meeting, December 2015, San Francisco, USA.

Postberg, F., Khawaja, N., Reviol, R., Nölle, L., Klenner, F., Hsu, H.-W. & Horanyi, M. (2015) On Organic Material in E Ring Ice Grains (Invited). Conference Paper, AGU Fall Meeting, December 2015, San Francisco, USA.

Srama, R., Postberg, F., Henkel, H., Li, Y., Reviol, R., Khawaja, N., Klenner, F., Moragas-Klostermeyer, G., Nölle, L., Soja, R., Sternovsky, Z., Kempf, S. & Trieloff, M. (2015) ENIJA: Search for life with a high-resolution TOF-MS for in situ compositional analysis of nano- and micron-sized dust particles. Conference Paper, EGU2015-13456, April 2015, Vienna, Austria.