Last seen in:
- New York Times - Nov 18 2018
- New York Times - Oct 28 2018
- The Washington Post - Jun 8 2017
- The Washington Post - Sep 14 2016
- New York Times - Aug 19 2016
- The Chronicle of Higher Education - Mar 18 2016
- New York Times - Nov 21 2014
- New York Times - Oct 12 2014
- New York Times - Dec 29 2013
- New York Times - Sep 24 2013