1. R.M. Bonnet, this issue.
2. Mission to the Moon;ESA SP-1150,1992
3. Man in Space — A European challenge in Biological Life Support;Tamponnet;ESA Bulletin,1991
4. Implementation of biological elements in Life Support Systems: rationale and development milestones;Tamponnet;ESA Bulletin,1993
5. Seismic energy release of the Moon;Goins;J. Geophys. Res.,1981