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A case study of Qingdao port competitiveness based on principal component analysis
- Source :
- Fifth International Conference on Traffic Engineering and Transportation System (ICTETS 2021).
- Publication Year :
- 2021
- Publisher :
- SPIE, 2021.
Details
- Database :
- OpenAIRE
- Journal :
- Fifth International Conference on Traffic Engineering and Transportation System (ICTETS 2021)
- Accession number :
- edsair.doi...........5d1509ef2e649fa7673bc7f1068d70fa
- Full Text :
- https://doi.org/10.1117/12.2619631