(For book: The Social and Emotional Development of Gifted Children: What Do We Know?. The link gives you great info about the papers included in the book.)

http://www.lanc.uk.com/MisdiagnosisandDualDiagnosesofGiftedChildren.pdf This is an article that has been expanded into a well know book that you might want to obtain.

http://digitalcommons.uconn.edu/dissertations/AAI3034004/ "The social and emotional adjustment of gifted children who experience asynchronous development and unique educational needs"

The above are links from a more scholarly area, but you can just google aynchronous development and find information from a lot of well respected sites. Hope that helps!