Based on documentary material and information from inmates and camp officials, and from official war crimes commissions, archivist Antun Miletić quoted from the sources the estimation at 600–700,000 victims, most Serbs. In his 1982 book, Franjo Tuđman (the later President of Croatia), deliberately misinterpreted the 1964 survey and claimed 60,000 deaths in all camps in the NDH. During the breakup of Yugoslavia, the Croatian side began publicly suggesting substantially smaller numbers of victims. The Jasenovac Memorial Site, the museum institution sponsored by the Croatian government since the end of the Croatian War of Independence, has posted claims that current research estimates the number of victims at between 80,000 and 100,000. The State Commission of Croatia for the Investigation of the Crimes of the Occupation Forces and their Collaborators from 1946 concludes:Such a manner of preconceived and inhumane torture and slaughter of a people has never been recorded in history. The Ustase criminals followed precisely the model of their German masters, most consciously executed all their orders, and did so in pursuit of a single goal: to exterminate as many of our people as possible, and to create a living space as large as possible for them. The total dependence by the Ustase on their German masters, the foundation of the camp itself, the dispatch of the "disloyal", the brutal implementation of Hitler's racist Nazi theories and the deportation to the camps and extermination of the racially and nationally "impure", the same methods of torture and atrocities with minor varieties of Ustase cruelty, the building of furnaces and incineration of victims in furnaces (the Picilli furnace) — all of the evidence points to the conclusion that both Jasenovac and the crimes committed in it were fashioned from a German recipe, owing to a German Hitlerite order as implemented by their servants, the Ustase. Subsequently, responsibility for the crimes of Jasenovac falls equally on their German masters and the Ustase executioners. On 16 November 1961, the municipal committee of former partisans from Bosanska Dubica organized an unofficial investigation at the grounds of Donja Gradina, led by locals who were not forensic experts. This investigation uncovered three mass graves and identified 17 human skulls in one of them. Based on this, along with the fact that 120 other untouched graves were identified, they extrapolated the number of victims to 350,800. In response, scientists were called in to verify the site. Dr Alojz Šercelj started preliminary drilling to identify the most likely grave locations, and then between 22 and 27 June 1964, exhumations of bodies and the use of sampling methods was conducted at Jasenovac by Vida Brodar and Anton Pogačnik from Ljubljana University and Srboljub Živanović from Novi Sad University.