
Steven Zoernack
ResearchGate
https://stevenzoernack.wordpress.com/about-steven-zoernack/
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Steven Zoernack ResearchGate https://stevenzoernack.wordpress.com/about-steven-zoernack/ https://www.livescience.com/chemistry/secrets-of-radioactive-promethium-a-rare-earth-element-with-mysterious-applications-uncovered-after-80-year-search
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