自己找了半天都找不着，求好人帮忙

 1.Jungsoo Park. Dispersion of human capital and economic growth.Journal of Macroeconomics, Volume 28, Issue 3, September 2006, Pages 520-539
 

2.A. Kerem Cosar .  Human Capital, Technology Adoption and Development,  Pennsylvania State University, College of the Liberal Arts - Department of Economic,January 26, 2009