- K-Theory 16: 129184, 1999. c 1999 Kluwer Academic Publishers. Printed in the Netherlands.
- K-Theory 17: 303318, 1999. c 1999 Kluwer Academic Publishers. Printed in the Netherlands.
- REMARKS ON YU'S PROPERTY A FOR DISCRETE METRIC SPACES AND GROUPS
- Operator Theory: Advances and Applications, Vol. 153, 271286
- TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY
- Math. Z. (2007) 255:451491 DOI 10.1007/s00209-006-0004-4 Mathematische Zeitschrift
- Advances in Mathematics 207 (2006) 455483 www.elsevier.com/locate/aim
- K-Theory 17: 215264, 1999. c 1999 Kluwer Academic Publishers. Printed in the Netherlands.
- Topology 41 (2002) 807834 www.elsevier.com/locate/top
- a Preprintreihe SFB 478 --Geometrische Strukturen in der
- Twisted K-theory and Poincare duality November 22, 2006
- Ann. Scient. c. Norm. Sup., 4e srie, t. 37, 2004, p. 841 910.
- Documenta Math. 565 Non-Hausdorff Groupoids,
- NON-HAUSDORFF GROUPOIDS, PROPER ACTIONS AND JEAN-LOUIS TU
- New York Journal of Mathematics New York J. Math. 18 (2012) 127.
