<http://schema.org/url>
<http://www.businessweek.com/articles/2013-05-15/hbs-to-u-dot-s-dot-competitiveness-continues-to-erode>
<http://www.bloomberg.com/bw/articles/2013-05-15/hbs-to-u-dot-s-dot-competitiveness-continues-to-erode>