Estructura fina (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Estructura fina" in Spanish language version.

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archive.org

AA. Michelson; E. W. Morley (1887). «On a method of making the wave-length of sodium light the actual practical standard of length». American Journal of Science 34: 427.
AA. Michelson; E. W. Morley (1887). «On a method of making the wave-length of sodium light the actual practical standard of length». Philosophical Magazine 24: 463.

doi.org

dx.doi.org

A.Sommerfeld (July 1940). «Zur Feinstruktur der Wasserstofflinien. Geschichte und gegenwärtiger Stand der Theorie». Naturwissenschaften (en alemán) 28 (27): 417–423. doi:10.1007/BF01490583.