plutonium
1993 / The Discovery of Spontaneous Fission in Plutonium during World War II / Lillian Hoddeson / Historical Studies in the Physical and Biological Sciences 23 (1993) p. 279 [doi]
1999 / [Search and Discovery] Plutonium May Be Hitching a Ride on Colloids / Barbara Goss Levi / Physics Today 52 (1999) p. 19 [doi]
2015 / Seaborg's plutonium? A case study in nuclear forensics / Eric B. Norman ; Keenan J. Thomas ; Kristina E. Telhami / American Journal of Physics 83 (2015) p. 843 [doi]