Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page David Hilbert:

"

Hilbert lived to see the Nazis purge many of the prominent faculty members at University of Göttingen in 1933.[4] Those forced out included Hermann Weyl (who had taken Hilbert's chair when he retired in 1930), Emmy Noether, and Edmund Landau. One who had to leave Germany, Paul Bernays, had collaborated with Hilbert in mathematical logic, and co-authored with him the important book Grundlagen der Mathematik[5] (which eventually appeared in two volumes, in 1934 and 1939). This was a sequel to the Hilbert–Ackermann book Principles of Mathematical Logic (1928). Hermann Weyl's successor was Helmut Hasse.[citation needed]