We're interested in automating the article assignment process via Apex.

How can we access the "Assigned To" and "Assigned By" fields (if they are fields) for articles in a draft status? We can't see these fields on the KAV object, or really anywhere in the ERD (http://www.salesforce.com/us/developer/docs/api/Content/sforce_api_guidelines_knowledge.htm).

Can we read or write this parameter?