1. Theory of Ragone plots;Christen;J. Power Source,2000
2. Direct Conversion of Nuclear Radiation Energy;Miley,1970
3. Nanopower Betavoltaic Microbatteries;Lal,2003
4. Demonstration of a 4H SiC betavoltaic cell;Chandrashekar;Appl. Phys. Lett.,2006
5. Nuclear batteries: types and possible uses;Thomas;Nucleonics,1955