Biography:
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Turan.html
Selected works:
On a New Method of Analysis and Its Applications (Pure & Applied Mathematics S.); John Wiley & Sons Inc (August, 1984);
Articles:
On some applications of graph theory. III. (with Erdös, P., Meir, A., Sós, V. T.) Canad. Math. Bull. 15 (1972) 27-32;
Corrigendum: "On some applications of graph theory. I". (with Erdös, P., Meir, A., Sós, V. T.) Discrete Math. 4 (1973) 90-90;
On the theory of graphs. Colloquium Math. 3 (1954) 19-30.
Books:
Collected Papers of Paul Turan, Akademiai Kiadó (December 1, 1990);
Studies in pure mathematics: To the memory of Paul Turán (Akadémiai Kiadó, 1983);
Articles:
Paul Erdös: Some personal reminiscences of the mathematical work of Paul Turán; (Acta Arithmetica 37 (1980) 3-8);
G. Halász: The number-theoretic work of Paul Turán; Acta Arithmetica 37 (1980) 9-19.
P. Erdős.: Paul Turan 1910-1976: his work in graph theory; J. Graph Theory 1 (1977) 97-101;
M. Simonovits: On Paul Turan's influence on graph theory; J. Graph Theory 1 (1977) 102-116;
Journal of Approximation Theory (P. Turán memorial volume.) (pdf)
Link: Turan graph.