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Snapshot of core data from en.wikipedia.org 2021-06
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1
p418_1
p418_1
http://prola.aps.org/abstract/PR/v55/i4/p418_1
Philip Abelson
Link from a Wikipage to an external page
p418_1
http://prola.aps.org/abstract/PR/v55/i4/p418_1