Heinrich Kayser (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Heinrich Kayser" in Portuguese language version.

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Mulligan, Joseph F. (1992). «Doctoral oral examination of Heinrich Kayser, Berlin, 1879». American Journal of Physics. 60 (1): 38. Bibcode:1992AmJPh..60...38M. doi:10.1119/1.17040
Herzberg, Gerhard (1955). «Heinrich Kayser 1853-1940». Biographical Memoirs of Fellows of the Royal Society. 1: 135–143. doi:10.1098/rsbm.1955.0010

Mulligan, Joseph F. (1992). «Doctoral oral examination of Heinrich Kayser, Berlin, 1879». American Journal of Physics. 60 (1): 38. Bibcode:1992AmJPh..60...38M. doi:10.1119/1.17040