https://www.archives.gov/files/iwg/reports/final-report-2007.pdf
Authors. Nazi War Crimes and Japanese Imperial Government Records Interagency Working Group
Venue. PDF at the National Archives
How the Institute flags it
established 1 time frontier 1 time
This source carries more than one flag across the corpus. That is not an inconsistency to resolve: the same work can be established evidence for one claim and frontier evidence for another, and the flag belongs to the use rather than to the source.