TY - THES DA - 2020 DO - 10.4119/unibi/2942203 LA - eng PY - 2020 TI - The Sigma-Invariants of S-arithmetic subgroups of Borel groups UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-29422031 Y2 - 2024-11-22T07:00:28 ER -