On the ?-adic representations associated to some simple Shimura varieties. Robert E. Kottwitz — 1992 Inventiones mathematicae
Harmonic analysis on semisimple p -adic Lie algebras. Kottwitz, Robert E. — 1998 Documenta Mathematica
Dimensions of some affine Deligne–Lusztig varieties Ulrich Görtz; Thomas J. Haines; Robert E. Kottwitz; Daniel C. Reuman — 2006 Annales scientifiques de l'École Normale Supérieure