This article from Agile 101 takes the 12 principles of risk management from PMBOK and summarizes them in a quick and easy to understand way (with an agile slant). While not a comprehensive explaination, this article does provide a very clear explanation of what must be considered when applying PMBOK’s principles for Agile Management.
To read the full, original article click on this link: 12 Principles of Risk Management (PMBOK with an Agile Slant)