Arjan van Leeuwen overviews code reviews advantages and disadvantages, how much can be done in a code review, types of critiques, how to handle critiques and conflicts that might arise from them.
Arjan van Leeuwen is a developer at travel software giant Amadeus, where he mainly works with C++. Reliability and speed are things that matter every day, but code quality is the subject that can really rile him up. Arjan has previously worked on Opera Software's flagship product - the Opera browser - for 6 years and is active in company groups dedicated to technical education.
ACCU is an organisation for anyone interested in developing and improving programming skills. ACCU welcomes everyone who is interested in any programming language. ACCU supports its members by hosting mailing lists, running a yearly conference, publishing journals and organising online study groups.
Can you post the references to the studies you mention, and/or books you might have found useful?