A survey of recent work in additive prime number theory. R.C. VAUGHAN Seminaire de Théorie des Nombres de Bordeaux
On the estimation of Schnirelman's constant. R.C. Vaughan — 1977 Journal für die reine und angewandte Mathematik
Exponential Sums with Multiplicative Coefficients. H.L. Montgomery; R.C. Vaughan — 1977 Inventiones mathematicae