Transactions of the American Mathematical Society
... Princeton, NJ, 1973; reprinted in Representation theory and harmonic analysis on semisimple Lie groups (pj Sally, Jr., and da Vogan, eds.), Math. ...
www.ams.org/ tran/ 1997-349-05/ S0002-9947-97-01834-5/ home.html
David Vogan's References
rp Langlands, On the classification of representations of real algebraic groups, Representation Theory and Harmonic Analysis on Semisimple Lie Groups, ...
www-math.mit.edu/ ~dav/ ref.html