Diaconis, P (1977). Examples of the theory of infinite iteration of summability methods. Canadian Journal of Mathematics 29(3), pp. 489497.
This work cites the following items of the Benford Online Bibliography:
Duran, JP (1974). Almost convergence, summability and ergodicity. Canadian Journal of Mathematics 26(2), pp. 372387. DOI:10.4153/CJM19740396.





Feller, W (1971). An Introduction to Probability Theory and Its Applications. 2nd ed., J. Wiley (see p 63, vol 2).





Flehinger, BJ (1966). On the Probability that a Random Integer has Initial Digit A. American Mathematical Monthly 73(10), pp. 10561061. ISSN/ISBN:00029890. DOI:10.2307/2314636.




