Biography:
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Riesz_Marcel.html
Books:
The General Theory of Dirichlet's Series (Phoenix Edition)
by G. H. Hardy, Marcel Riesz; Dover Publications (December 19, 2005);
E. F. Bolinder and P. Lounesto, Marcel Riesz: Clifford Numbers and Spinors, (Kluwer, 1993);
Clifford Numbers and Spinors : with Riesz's Private Lectures to E. Folke Bolinder and a Historical Review by Pertti Lounesto (Fundamental Theories of Physics) by Marcel Riesz , et al; Springer; 1 edition (December 31, 1999);
Marcel Riesz Collected Papers by Marcel Riesz, et al; Springer (October 1, 1988);
Clifford numbers and spinors (University of Maryland. Institute for Fluid Dynamics and Applied Mathematics. Lecture series) by Marcel Riesz;
On the first elements of relativity theory and quantum theory;: Lectures, winter 1954 by Marcel Riesz.
Articles:
Riesz, M., L'integral de Riemann-Liouville et le probl`eme de Cauchy, Acta Mathematica, 81, pp. 1-223, 1949;
M. L. Cartwright, Manuscripts of Hardy, Littlewood, Marcel Riesz and Titchmarsh, Bull. London Math. Soc. 14 (6) (1982), 472-532;
L. Garding, Marcel Riesz in Memoriam, Acta Mathematica 124 (1970), x-xi.;
J. Horváth, L'oeuvre mathématique de Marcel Riesz I, Proceedings of the Seminar on the History of Mathematics 3 (Paris, 1982), 83-121.;
J. Horváth, L'oeuvre mathématique de Marcel Riesz II, Proceedings of the Seminar on the History of Mathematics 4 (Paris, 1983), 1-59.;
J. Peetre, Marcel Riesz in Lund, Function spaces and applications, Lecture Notes in Math. 1302 (Berlin-New York, 1988), 1-10.;
J. D. Stegeman, Marcel Riesz: collected papers, Nieuw Arch. Wisk. (4) 9 (1) (1991), 87-91.
Links:
Ruben Alejandro Cerutti and Susana Elena Trione: On the inversion of Marcel Riesz ultrahyperbolic causal operators (pdf)
Ruben Alejandro Cerutti and Susana Elena Trione: Some properties of the generalized causal and anticausal Riesz potentials (pdf)