In June 2007, the Sarajevo-based Research and Documentation Center published extensive research on the Bosnian war deaths, also called "The Bosnian Book of the Dead", a database that initially revealed a minimum of 97,207 names of Bosnia and Herzegovina's citizens confirmed as killed or missing during the 1992–1995 war. The head of the UN war crimes tribunal's Demographic Unit, Ewa Tabeau, has called it "the largest existing database on Bosnian war victims", and it is considered the most authoritative account of human losses in the Bosnian war. More than 240,000 pieces of data were collected, checked, compared and evaluated by an international team of experts in order to produce the 2007 list of 97,207 victims' names.