1. [0] J. G. Arthur, A trace formula for reductive groups. I. Terms associated to classes in $G(\bf Q)$, Duke Math. J. 45 (1978), no. 4, 911–952.
2. [1] J. Arthur, The local behaviour of weighted orbital integrals, Duke Math. J. 56 (1988), no. 2, 223–293.
3. [2] J. Arthur, The invariant trace formula. I. Local theory, J. Amer. Math. Soc. 1 (1988), no. 2, 323–383.
4. [3] J. Arthur, The invariant trace formula II, Global theory, preprint.
5. [4] J. Arthur and L. Clozel, Simple algebras, base change, and the advanced theory of the trace formula, to appear in Annals of Math. Studies, Princeton U. Press.