Journals
Publish with us
Publishing partnerships
About us
Blog
Discrete Dynamics in Nature and Society
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Discrete Dynamics in Nature and Society
/
2021
/
Article
/
Fig 2
/
Research Article
Efficiency Evaluation of Energy in Northeastern China Based on Data Envelopment Analysis
Figure 2
Average technical change.