1. Some Tauberian theorems connected with prime number theorem;Ingham;J. London Math. Soc.,1945
2. Approximate formulas for some functions of prime numbers, I 11;Rosser;J. Math.,1962
3. On convolutions with the Möbius function;Segal,1972
4. Ingham's summability method and Riemann's hypothesis;Segal,1975