References
Additional references that may be useful, including books, method plug-ins, and commercial methodology products.
Main Description
BOE95 Boehm, B. Anchoring the Software Process, http://sunset.usc.edu/publications/TECHRPTS/1995/usccse95-507/ASP.pdf

BRO95

Brooks, F.P The Mythical Man Month: Essays on Software Engineering, 20th Anniversary Edition. Addison Wesley Professional, 1995.

CRO79 Crosby, Philip. Quality is Free: The Art of Making Quality Certain, McGraw-Hill, 1979.
KRO03 Kroll, P. and Kruchten, P. The Rational Unified Process Made Easy, Addison Wesley, 2003.
KRO05 Kroll, P. and MacIsaac, B. Agility and Discipline Made Easy, Addison Wesley, 2005.
RUP06 IBM Rational 2006. The Rational Unified Process.
A commercial methodology, also based on the Eclipse Process Framework, and advanced guidance on topics such as business modeling, portfolio management, asset-based development, real-time design, user experience, and so on.
SCH04 Schwaber, K. Agile Project Management with Scrum. Microsoft Press 2004.

An excellent reference by one of the co-inventors of the Scrum project management method.

SEI99 SEI, 1999. Software Risk Evaluation (SRE) Method Description, v2.0.
http://www.sei.cmu.edu/pub/documents/99.reports/pdf/99tr029-body.pdf#search=%22software%20risk%20evaluation%22