Add family therapy to your search, and such terms as family of origin, differentiation, multigenerational family therapy, and intergenerational family therapy.
Division 43 of the American Psychological Association has some resources athttp://www.apa.org/about/division/div43.aspx .
Also the American Association at http://www.aamft.org/iMIS15/AAMFT/
One somewhat dated bibliography can be found at
Article An Annotated Bibliography of Intergenerational Family Issues