Here is a well-documented, but poorly written book on the subject: <a href="http://www.amazon.com/s/ref=nb_ss_gw/105-3065265-3398067?url=search-alias%3Daps&field-keywords=Merging+a+Mosaic%2C+hart&x=0&y=0" target="_blank">http://www.amazon.com/s/ref=nb_ss_gw/105-3065265-3398067?url=search-alias%3Daps&field-keywords=Merging+a+Mosaic%2C+hart&x=0&y=0</a>