The Atom API: Publishing Web Content with XML and HTTP
http://www.idealliance.org/proceedings/xml04/abstracts/paper45.html

Gregorio, Joe
IDEAlliance
2004

Abstract:

The Atom API is an emerging interface for editing content. The interface is RESTful and uses XML and HTTP to define an editing scheme that's easy to implement and extend. History, basic operation, and applications to areas outside weblogs will be covered.