1. Akiyama S., Egami S., Tanigawa Y., Analytic continuation of multiple zeta-functions and their values at non-positive integers, Acta Arith., 2001, 98, 107–116
2. Dev. Math.;S. Akiyama,1999
3. Apostol T., Vu T.H., Dirichlet series related to the Riemann zeta function, J. Number Theory, 1984, 19, 85–102
4. Atkinson F.V., The mean value of the Riemann zeta function, Acta Math., 1949, 81, 353–376
5. Hardy G.H., Notes on some points in the integral calculus LV, On the integration of Fourier series, Messenger of Math., 1922, 51, 186–192; reprinted in Collected Papers of Hardy G.H. (including joint papers with Littlewood J.E. and others), Clarendon Press, Oxford, 1969, III, 506–512