Fano, U. (1947-07-01). "Ionization Yield of Radiations. II. The Fluctuations of the Number of Ions". Physical Review. 72 (1). American Physical Society (APS): 26–29. doi:10.1103/physrev.72.26. ISSN0031-899X.
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Fano, U. (1947-07-01). "Ionization Yield of Radiations. II. The Fluctuations of the Number of Ions". Physical Review. 72 (1). American Physical Society (APS): 26–29. doi:10.1103/physrev.72.26. ISSN0031-899X.