Hewitt, E.; Stromberg, K. (1965). Real and Abstract Analysis. Berlin-Heidelberg-New York: Springer-Verlag.This, as with other standard texts, has the Cantor function and its one sided derivates.
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Basu, Sanjib; Dasgupta, Anirban (1997). „The mean, median, and mode of unimodal distributions: a characterization”. Theory of Probability & Its Applications. 41 (2): 210—223. doi:10.1137/S0040585X97975447.