基于PCA—BP的PPP基础设施项目风险评价研究
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1004-5937|volume|7|56-59
ISSN: 1004-5937
Source: 会计之友, Vol.volume, Iss.7, 2016-01, pp. : 56-59
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Abstract