Comparing agile and traditional project management

If I were writing an academic paper comparing traditional and agile software development/project management methods I would start my literature review with some of these.  Any suggestions for where to extend it?

• Boehm and Turner’s “Balancing Discipline and Agility”
• Winston Royce’s “Managing large software development systems” (sic)
• Fred Brooks “No Silver Bullet” 
• Mike Cohn’s “Agile Planning and Estimating”
• Something on Earned Value like A Practical Guide to Earned Value Project Management or Earned Value Project Management
• Cockburn’s “Agile Software Development: The Cooperative Game” and “People and Methodologies in Software Development”

I'd also need to understand that the waterfall model is not really practiced. It’s just a straw man for an argument.

I'd ask myself,

• What are the common characteristics of real world ‘traditional project management’?
• What divergences do we have to the agile manifesto content?
• How are the ‘agile methods’ different?