Research on interactions of neutrons in chemical physics of heavy elements. which turned out to be an important step in the discovery of nuclear fission.
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^Hansen, Anthony D. A; Rosen, H; Novakov, Tihomir (1 January 1984). "The aethalometer: an instrument for the real-time measurement of optical absorption by aerosol particles". 36: 191–196. OCLC813625680. {{cite journal}}: Cite journal requires |journal= (help)