L2 index and unitary representations -- Sur la classification des modules admissibles irredutibles -- Representations spheriques singulieres -- The plancherel theorem for semisimple Lie groups without compact Cartan subgroups -- Completion functors in the Q category -- Minimal K-type formula -- The role of basic cases in classification: Theorems about unitary representations applicable to SU(N,2) -- On the existence of a generalized weil representation -- Solution of a conjecture of Langlands