Assertion: atomic fission | /r/HasProperty | discovered by lise meitner
Facets:
value: in 1939
type: TEMPORAL
value: with her nephew
type: OTHER
Source sentences:
text: In 1939 atomic fission had been discovered by Lise Meitner (1878 to 1968) with her nephew Otto Frisch and was documented in her paper Disintegration of Uranium by Neutrons.