Notice of Retraction: Research on Chinese cities comprehensive competitiveness based on principal component analysis and factor analysis in SPSS

作者：Niu Dongxiao, Tian Jie, Ling Ji · 年份：2011 · DOI：10.1109/icsess.2011.5982478 · 被引用次数：8 · 研究领域：Regional Economic and Spatial Analysis

Retracted.