Source Askold Vinogradov (Wikipedia)
Source Abel's Summation Formula (Wikipedia)
Source Anatoly Karatsuba (Wikipedia)
Source Atle Selberg, Biography (MacTutor History of Mathematics)
Source Bombieri-Vinogradov Theorem (Wikipedia)
Source Brun-Titchmarsh theorem (Wikipedia)
Source Carl Ludwig Siegel (Wikipedia)
Source Chebyshev Function (Wikipedia)
Source Chen Jingrun (Wikipedia)
Source Dirichlet Eta Function (Wikipedia)
Source Edmund Landau, Biography (MacTutor History of Mathematics)
Source Wikipedia: Edward Charles Titchmarsh
Source MacTutor biography of Enrico Bombieri, St Andrews
Source Friedlander-Iwaniec theorem (Wikipedia)
Source Godfrey Harold Hardy (MacTutor)
Source Hans Rademacher, Biography (MacTutor History of Mathematics)
Source Wikipedia: Hans-Egon Richert
Source Harold Davenport (MacTutor)
Source Heini Halberstam (Wikipedia)
Source Wikipedia: Helmut Maier
Source Henryk Iwaniec (Wikipedia)
Source University of Michigan Board of Regents: Hugh L. Montgomery retirement memoir (University of Michigan Regents)
Source Ivan Vinogradov (Wikipedia)
Source John Friedlander (Wikipedia)
Source Jurkat-Richert theorem (Wikipedia)
Source Linnik's theorem (Wikipedia)
Source Logarithmic Integral Function (Wikipedia)
Source Nikolay Korobov (Wikipedia)
Source Perron's Formula (Wikipedia)
Source Peter Gustav Lejeune Dirichlet (Wikipedia)
Additional Source Prime Number Theorem (Wikipedia)History of the proof of the asymptotic law of prime numbers
Source Riemann Zeta Function (Wikipedia)
Source Siegel-Walfisz theorem, Wikipedia
Source Theodor Estermann biography (MacTutor)
Source Vinogradov's mean value theorem (Wikipedia)
Source Z Function (Wikipedia)