I'm fine accepting the article's conclusion, but I missed the reference to the "...

		calibraxis on May 28, 2014 \| parent \| context \| favorite \| on: Why Germany Dominates the U.S. in Innovation I'm fine accepting the article's conclusion, but I missed the reference to the "repeated studies" it mentions. Anyone know which these are? (Is it in the links to places like asme.org?)