23 mass graves in the forests of Macelj, leaving around 130 possible mass grave locations unexplored. In 2002, the Slovenian government established the Governmental Committee for Settlement of Questions on Secret Mass Graves, with the assignment of "recording of data about the number and locations of mass graves" after the end of World War II. The Tezno mass graves near Maribor were discovered in 1999 during the construction of a motorway. 1,179 corpses were excavated from a 70 meter long part of the trench. In 2007, the Commission on Concealed Mass Graves in Slovenia, founded in 2005, analyzed the entire Tezno trench and found human remains at a length of 940 metres, estimated to contain the remains of around 15,000 victims. In 2009, the Barbara Pit near Huda Jama in Slovenia was uncovered, and 726 human remains were exhumed by December 2009. The same year, more pits were uncovered on two locations near the Croatian-Slovenian border, one near the village of Harmica and the other near Gornji Hrašćan, estimated to hold, together, around 4,500 bodies. By mid 2008, 581 concealed grave sites were registered by the Slovenian Commission on Concealed Mass Graves. The number rose to more than 600 grave sites in 2010. The commission estimates that there are around 100,000 victims in those graves in Slovenia alone. Unlike in Slovenia, there was no serious research of mass graves in Croatia by the Croatian government. In 1991, the Croatian Parliament established the Commission for Determination of War and Post-war Victims. The commission began its work in 1994, but was abolished in 2002, with no significant contribution to the research. Number of victims The exact number of deaths in the forced marches and in camps after the end of the war is difficult to determine. The number of casualties, provided by the literature dealing with the Bleiburg repatriations and its aftermath, mostly ranges from about 50,000 to 200–250,000. Estimates on the number of casualties were first provided in emigrant literature, ranging from 100,000 to 600,000 deaths, mostly on the basis of eyewitness accounts. Yugoslav dissident Milovan Đilas wrote in 1977 that the figure is higher than 20,000, but did not exceed 30,000. In 1989, the historian Franjo Tuđman, who at the time of Bleiburg was a Croatian representative at the Supreme Headquarters of the Yugoslav Army, and later became Croatia's first president, estimated the number of Bleiburg-related victims at 35,000 to