“Communication with Individuals with Intellectual Disabilities and Psychiatric Disabilities: A Summary of the Literature,” by Walton O. Schalick, III (WP 2012-064, July 2012, .pdf format, 43p.). Note: Links to the abstract and full-text can be found at:
www.mrrc.isr.umich.edu/publications/index_abstract.cfm?ptid=1&pid=837