Last seen in:
- New York Times - Sep 6 2017
- New York Times - Jul 13 2017
- New York Times - Feb 12 2017
- New York Times - Sep 21 2016
- New York Times - Feb 16 2016
- New York Times - Aug 9 2014
- New York Times - Mar 28 2014
- The Chronicle of Higher Education - Mar 29 2013
- New York Times - Feb 8 2012
- New York Times - Dec 26 2011