Assertion: rutherfordium's life | /r/CapableOf | report by czerwinski et al
Facets:
value: previously
type: TEMPORAL
Source sentences:
text: A 0.2 nb upper limit production cross section for the {sup 248}Cm({sup 22}Ne, {alpha}3n){sup 263}Rf reaction was calculated assuming the 500-sec half-life reported previously by Czerwinski et al.