Documentation from the trial of Helmut Pohl and other members of the staff of the HSSPF ("Hoeherer SS- und Polizeifuehrer" - Higher SS and police leader) held in the Klagenfurt Regional Court; Testimonies by perpetrators from SSPF Lublin, Grafeneck and Hadamar euthanasia centers and Belzec extermination camp, 1959 - 1964