1. The imaging science of positron emission tomography;Jones;Eur. J. Nucl. Med.,1996
2. A theory of electrons and proton;Dirac;Proc. Roy. Soc.,1930
3. Energies of cosmic-ray particles;Anderson;Phys. Rev.,1932
4. A brief history of positron emission tomography (PET);Wagner;Semin. Nucl. Med.,1998
5. Cassen B, Curtis L, Reed CW. A sensitive directional gamma-ray detector. Nucleonics 1950, 78–81.