Croatia's far-right often advocates the false theory that Jasenovac was a "labour camp" where mass murder did not take place. Among them is the far-right NGO "The Society for Research of the Threefold Jasenovac Camp" which also claims that the camp was used by the Yugoslav authorities following the war to imprison Ustasha members and regular Home Guard army troops until 1948, then alleged Stalinists until 1951. Members of the organization includes public figures such as journalist Igor Vukić, Catholic priest Stjepan Razum and academic Josip Pečarić. The ideas promoted by its members have been amplified by mainstream media interviews and book tours. Vukić's book "The Jasenovac Lie Revealed" prompted the Simon Wiesenthal Center to urge Croatian authorities to ban such works, noting that they "would immediately be banned in Germany and Austria and rightfully so". Croatian filmmaker Jakov Sedlar also peddled this theory in his documentary "Jasenovac – The Truth", bringing accusations of holocaust and genocide denial from organisations representing the ethnic groups that were the primary victims of the camp.