Idea
Example of node evolution for Causal Junctions (pic 2)
S12 added a reference for the node shortly after. They explained that they did not know the location of the reference at the time they created the node in their reasoning.

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Updated 2020-05-16
Tags
ACM Conference on Computer-Supported Cooperative Work (CSCW)
CSCW (Computer-supported cooperative work)
Computing Sciences