TY - JOUR AU - Joachim Schwermer TI - Geometric cycles, Albert algebras and related cohomology classes for arithmetic groups JO - Groups, geometry, and dynamics PY - 2011 SP - 529 EP - 552 VL - 5 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4171/ggd/138/ DO - 10.4171/ggd/138 ID - 10_4171_ggd_138 ER -