1.

Conference Proceedings
Conference Proceedings
1. Activities of microorganisms and enzymes in water-restricted environments: biological activities in aqueous compartments at micron scale
Hoppert,M. ; Mlejnek,K. ; Seiffert,B. ; Mayer,F.
Pub. info.: Instruments, methods, and missions for the investigation of extraterrestrial microorganisms : 29 July-1 August 1997, San Diego, California.  pp.501-509,  1997.  Bellingham, Wash., USA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 3111
2.

Conference Proceedings
Conference Proceedings
2. Endolithic biofilms:a model for extraterrestrial ecological niches?
Pohl,W. ; Hoppert,M. ; Flies,C. ; Gunzl,B. ; Ruppert,H. ; Schneider,J.
Pub. info.: Instruments, methods, and missions for astrobiology II : 20-22 July 1999, Denver, Colorado.  pp.223-231,  1999.  Bellingham, Wash., USA.  SPIE - The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 3755