1. Beagle 2 homepage, Power Section (2004), http://www.beagle2.com/technology/power.htm
2. Chalk, S.G., Miller, J.F.: Key challenges and recent progress in batteries, fuel cells, and hydrogen storage for clean energy systems. J. Power Sources 159, 73–80 (2006)
3. Clark, B.C.: Mars sample return: the critical next step. Acta Astronaut 61, 95–100 (2007)
4. DOE, Space Radioisotope Power Systems - Multi-Mission Radioisotope Thermoelectric Generator (2006), http://nuclear.gov/pdfFiles/MMRTG.pdf
5. Fraser, S.D.: Non-nuclear power system options for a mission to Mars and derived terrestrial applications. Diploma thesis, Graz University of Technology (2001)