Author: Tim_Porter Format: MarkdownItexThe old webpage link seemed to be dead, so I have replaced it with both the HCM and the HIM links in Bonn.
<a href="https://ncatlab.org/nlab/revision/diff/Wolfgang+Lueck/4">diff</a>, <a href="https://ncatlab.org/nlab/revision/Wolfgang+Lueck/4">v4</a>, <a href="https://ncatlab.org/nlab/show/Wolfgang+Lueck">current</a>
The old webpage link seemed to be dead, so I have replaced it with both the HCM and the HIM links in Bonn.