1. Groupes réductifs;Borel, Armand;Inst. Hautes \'{E}tudes Sci. Publ. Math.,1965
2. Automorphic functions and the theory of representations;Gel′fand, I. M.,1963
3. Sur les relations d’orthogonalité de V. Bargmann. II. Démonstration générale;Godement, Roger;C. R. Acad. Sci. Paris,1947
4. Discrete series for semisimple Lie groups. II. Explicit determination of the characters;Harish-Chandra;Acta Math.,1966
5. Lecture Notes in Mathematics, No. 62;Harish-Chandra,1968