1. Roentgen;Glasser,1958
2. On a new kind of ray (first report);Roentgen;Munch Med Wochenschr,1959
3. Becquerel's discovery of radioactivity in 1896;Myers;J Nucl Med,1976
4. Sur une nouvelle substance fortement radioactive contenue dans la pechblende (note presented by M Becquerel);Curie;Compt Rend Acad Sci (Paris),1898
5. Marie Curie: A Life;Giroud,1986