found: His Four miniatures for archiphone, 1984:title page (Joel Mandelbaum)
found: nuc89-3950: His Muliple division of the octave ... 1961(heading on CSt report: Mandelbaum, Joel; usage: M. Joel Mandelbaum)
found: Koshgarian, R. Am. orchestral music, 1992(Mandelbaum, Joel; born 1932)
found: OCLC database, 5-8-96(hdgs.: Mandelbaum, Joel; Mandelbaum, Mayer Joel, 1932- ; usage: Joel Mandelbaum, M. Joel Mandelbaum, Mayer Joel Mandelbaum)
found: Wikipedia, November 15, 2019(Joel Mandelbaum; Mayer Joel Mandelbaum; born October 12, 1932 in New York City; American music composer and teacher, best known for his use of microtonal tuning (notably just intonation and 19 equal temperament and the 31 equal temperament); he wrote the first Ph.D. dissertation on microtonality in 1961)
