Last seen in:
- New York Times - Aug 16 2015
- New York Times - Jan 11 2015
- New York Times - Nov 6 2014
- Wall Street Journal - Aug 29 2014 - August 29, 2014 - Division of Labor
- New York Times - Jul 20 2014
- New York Times - Dec 3 2013
- New York Times - Jul 30 2013
- New York Times - May 13 2013
- New York Times - Apr 28 2013
- New York Times - Apr 23 2013