Proceedings of the III European Workshop on Exo-Astrobiology : Mars, the search for life : 18-20 November 2003, Madrid, Spain. pp.297-298, 2004. Noordwijk. ESA Publications Division
Proceedings of life in space for life on earth : 8th European symposium on life science research in space : 23rd annual International gravitational physiology meeting, 2-7 June 2002, Karolinska Institutet, Stockholm, Sweden. pp.241-242, 2002. Noordwijk. ESA Publications Division
Exo-/astro-biology : proceedings of the first European workshop, 21-23 May 2001, ESRIN, Frascati, Italy. pp.251-254, 2001. Noordwijk, The Netherlands. ESA Publications Division
Proceedings of the Second European Workshop on Exo-astrobiology : 16-19 September 2002, Graz, Austria. pp.71-76, 2002. Noordwijk, The Netherlands. ESA Publications Division