1. Künstliche Erregung von Kern-Strahlen;Bothe;Z. Phys.,1930
2. The existence of a neutron;Chadwick;Proc. R. Soc. A.,1932
3. Nuclear Chemistry, Theory and Applications;Choppin,1980
4. Radiochemistry and Nuclear Chemistry;Choppin,2013
5. The emission of high energy photons from hydrogenous substances irradiated with very penetrating alpha rays;Curie;Comptes. Rendus.,1932