1. Über fastperiodische ebene Bewegungen;Bohr;Comment. Math. Helv.,1932
2. The Selberg class: a survey;Kaczorowski,1999
3. Kaczorowski J., Perelli A., On the prime number theorem for the Selberg class (to appear)
4. Stronger multiplicity one for Selberg's class;Murty,1997
5. Strong multiplicity one for Selberg's class;Murty;C. R. Acad. Sci. Paris, Série I,1994