Update index.md

Author: sterling-yin

content/publications/CCC2023/index.md

@@ -41,6 +41,8 @@ links:
     url: "https://doi.org/10.1016/j.cemconcomp.2022.104911"
   # - type: video
   #   url: ""
+  - type: doi
+    url: "https://doi.org/10.1016/j.cemconcomp.2022.104911"
 
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