American Psychiatric Association. “Authorities Should Increase Vigilance for Sibling Abuse,” Psychiatric News, October 2, 1998.
Asherman, Lee I. And Ellen J. Safier. "Sibling Incest: A Consquence of Individual and Family Dysfunction." Bulletin of the Menninger Clinic. Summer 1990. 54(3). 311-322.
Ferrer, Millie and Sara McCrea. “Sibling Rivalry.” Document FCS 2132, one of a series of the Department of Family, Youth and Community Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, June 1999. [The 1999 version is no longer available online, because it was reviewed and updated in June 2002, after I wrote this paper. See the 2002 version at http://edis.ifas.ufl.edu/pdffiles/HE/HE11000.pdf.]
Frazier, Billie H and Kathleen C. Hayes. "Selected Resources on Sibling Abuse: An Annotated Bibliography for Researchers, Educators, and Consumers." University of Maryland, CES. October 1994, http://www.cyfernet.org/research/sibabuse.html.
Gelles, Richard J. Intimate Violence in Families. 3rd ed. Thousand Oaks, CA: Sage Publications. 1997.
Green, Arthur S. "Child Abuse by Siblings." Child Abuse and Neglect. 1984. 8: 311-317.
Iowa State University, "Understanding Abuse: Sibling Abuse," University Extension: Ames, Iowa, Reprinted October 1994, http://www.extension.iastate.edu/Publications/PM1478X8.pdf.
Kiegelmann, Mechthild. Coming to terms: a qualitative study of six women's experiences of breaking the silence about brother-sister incest. Thesis (Ed. D.)--Harvard Graduate School of Education, 1997.
Kiegelmann, Mechthild. More than just playing doctor: a review of psychological literature on women's experiences on [i.e. of] brother-sister incest. Qualifying paper--Harvard Graduate School of Education, 1995.
Kochakian, Mary Jo. "How to Spot and Deal with Sibling Abuse." Palm Beach Post. October 22, 1992, Section: Accent, pg. 3D.
Pfouts, J.J., J.H. Schopler, and H.D. Henley, "Forgotten Victims of Family Violence." Social Work. July 1982. 27(4). 367-368.
Rayment, Susan and Nicole Owen. "Working With Individuals and Families Where Sibling Incest has Occurred: The Dynamics, Dilemmas and Practice Implications." A paper presented at the Children and Crime: Victims and Offenders Conference convened by the Australian Institute of Criminology, Brisbane, June 17-18 1999, http://www.aic.gov.au/conferences/children/owen.pdf.
Snyder, Howard. "Sexual Assault of Young Children as Reported to Law Enforcement: Victim, Incident, and Offender Characteristics: A Statistical Report Using Data from the National Incident-Based Reporting System." National Center for Juvenile Justice. July 2000. NCJ 182990.
Steinmetz, S.J. "A Cross-Cultural Comparison of Sibling Violence," International Journal of Family Psychiatry. 1981. 2 (3/4): 337-351.
Strauss, Murray A. and Richard J. Gelles, eds. Family Violence in American Families: Risk Factors and Adaptations to Violence in 8, 145 Families. New Brunswick, NY: Transaction Publishers, 1990.
University of Michigan Medical School, "Sibling Abuse." Your Child: Development and Behavior Resources: A Guide to Information and Support for Parents, http://
Wiehe, Vernon R. Sibling abuse: hidden physical, emotional, and sexual trauma. 2nd ed. Thousand Oaks, Calif.: Sage Publications, c 1997.
These are the sources that I found useful when writing my paper in 2002. It looks like there is a much more extensive bibliography here.