I stumbled on this bibliography for an article on sibling group adoption:
Banks, Stephen P., and Michael D. Kahn.
The Sibling Bond. New York: Basic Books, Inc., 1982.
Couve, Davis, LePere, and McDonald.
Large Sibling Groups-Adoption Experiences.Washington, DC: Child Welfare League of America, 1986
Depp, Carole H. "Placing Siblings Together,"
Children Today, Vol. 12, No. 2 (March-April 1983), pp. 14-19.
Donley Zeigler, Kathryn S.
Sibling Attachments and Adoption. Southfield, MI:
National Resource Center For Special Needs Adoption, 1985.
Herman, Flory G. “I Have Roots and Branches” Personal Reflections on Adoption, May 2004
Jewett, Claudia.
Adopting the Older Child. Boston: Harvard Common, 1974.
Kaufman, Martie and Kathy Walton.
The Placement of a Large Sibling Group: A Cooperative Approach. Washington DC: Department of Health and Human Services, 1981.
Penelton, J. M.
Sibling Placements: A Problem? Columbia, MO: University of Missouri, 1981.
Powell, Thomas H., and Peggy Ahrenhold-Ogle.
Brothers and Sisters: A Special Part of an Exceptional Family. Baltimore, MD: Paul Brooks Publishing Co., 1985.
Rosenthal, Elisabeth. "Troubled Marriage? Sibling Relations May Be at Fault."
The New York Times, August 18, 1992, pp. C-1 and C-9.
Staff, Ilene, and Edith Fein. "Together or Separate: A Study of Siblings in Foster Care,"
Child Welfare", Vol. 41, No. 3 (May-June 1992), pp. 257-270.
Ward, Margaret, "Full House: Adoption of a Large Sibling Group,
"Child Welfare", Vol. 27, No. 4 (March-April 1978), pp. 233-241.
Ward, Margaret, "Sibling Ties in Foster Care and Adoption Planning,
"Child Welfare", Vol. 33, No. 4 (July-August 1984), pp. 321-331.
The article was here:
Adoption Education Center: The Sibling Bond