Hoffmann, Michael Max Planck Institute for Mathematics, Max Planck Society;
https://hdl.handle.net/20.500.11811/6147 (Any fulltext)
Hoffmann, M. (2017). L2-index theory, the Chern conjecture, and manifolds of special holonomy. PhD Thesis, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn.