Knowledge Workflow Approval

Summary:

Where is it coming from and can it be stopped and/or edited?

Content (please ensure you mask any confidential information):

When we use the Knowledge Workflow and we assign it to Knowledge Authors/Managers, whoever has access for approval, they receive a notification.
It seems like it is not in Approval Workflow since there are no approval in the notification and it just brings us to the article.

Questions:
- Where can I see the source of the notification?
- Is there an equivalent email being sent to the assigned approver?
- Is there an equivalent email being sent to the owner of the article?