1. Radioactive Element 93;McMillan;Phys.,1940
2. Effect of Temperature on the Resonance Absorption of Neutrons by Uranium;Mitchell,1943
3. Properties of 94(239);Kennedy;Phys. Rev.,1946
4. Die Energetischen Verhaltnisse beim 44-Stunden-Lanthan und Element 93;Philipp;Z. Naturforsch.,1946
5. The Radiations Emitted by 239U, and its Formation in the Deuteron Bombardment of Uranium;Feather,1947