# Data issues specifically in Citation Graph

## Repeated entries

* 2020-04-19
* https://qa.fatcat.wiki/release/lcarb5rg5vf3tk4hpvosja5sm4/outbound-refs

A DOI seems to be using the key, which leads to repeated entries.

## Self references

* 2020-04-19
* https://qa.fatcat.wiki/release/3fcp4pk7nfamvkbjekqam24bfq/outbound-refs

The source and target seem to be the same.

## Duplicated Edges

* 2020-04-20
* https://qa.fatcat.wiki/release/22222736evcc7kdn3bleua3fge/outbound-refs
* found 16/1M

Source and target are the same, maybe DOI with ref key?