1
文献名： Investing in human and natural capital: An alternative paradigm for sustainable development in Awassa, Ethiopia
作者：
Travis W. Reynolds
期刊： Ecological Economics
电子链接: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VDY-4W4DVDR-1&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=937498200&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=865aaac55f681639319ba5dde83dcfd4

2
文献名： The capital theory approach to sustainability: a critical appraisal.
作者： david i.stern
期刊： Journal of. Economic Issues 31, 145–73
电子链接：http://www.jstor.org/pss/4227154