1. A mean value theorem for quadratic fields;Ayoub;Pacific J. Math.,1958
2. Über das Teilerproblem von Piltz;Cramér;Ark. Mat. Astr. och. Fys.,1922
3. The average order of the functions P(x) and Δ(x);Hardy;Proc. London Math. Soc. (2),1915
4. D.R. Heath-Brown, Mean values of the zeta-function and divisor problems, Recent Progress in Analytic Number Theory, Durham Symposium 1979, Vol. 1, Academic Press, London, 1981.
5. Exponential sums and lattice points, II;Huxley;Proc. London Math. Soc. (3),1993