Pearson, Karl (1905), "Das Fehlergesetz und seine Verallgemeinerungen durch Fechner und Pearson. A Rejoinder" [The Error Law and its Generalizations by Fechner and Pearson. A Rejoinder], Biometrika, 4 (1–2): 169–212, doi:10.1093/biomet/4.1-2.169, JSTOR2331536
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Hosking, Jonathan R. M. (1992), "Moments or L moments? An example comparing two measures of distributional shape", The American Statistician, 46 (3): 186–189, doi:10.1080/00031305.1992.10475880, JSTOR2685210
Pearson, Karl (1905), "Das Fehlergesetz und seine Verallgemeinerungen durch Fechner und Pearson. A Rejoinder" [The Error Law and its Generalizations by Fechner and Pearson. A Rejoinder], Biometrika, 4 (1–2): 169–212, doi:10.1093/biomet/4.1-2.169, JSTOR2331536
Hosking, Jonathan R. M. (1992), "Moments or L moments? An example comparing two measures of distributional shape", The American Statistician, 46 (3): 186–189, doi:10.1080/00031305.1992.10475880, JSTOR2685210