I came across these articles when preparing to explain this ITIL processes to my senior management.
Below are some interesting insights to RDM as compared to ChM.
The link between Change Management and Release Management - Dalibor Siroky
http://www.plutora.com/insights/2012/the-link-between-change-management-and-release-management/
Blog: The Difference between Change and Release Management - Professor P. Ross S. Wise
http://www.itsmprofessor.net/2014/03/the-difference-between-change-and.html
Process Improvement: What's the difference between change management and release control? - www.projectmanagement.com
http://www.projectmanagement.com/discussion-topic/9745/Whats-the-difference-between-change-management-and-release-control--
