Reports and articles by the Ghetto Archives staff: "Plan to Reduce the Ghetto" by Jozef Zelkowicz, 01 February-07 February 1941 Report on the German directive to reduce the area of the ghetto by 5%; Ghetto Administration assessments regarding its implementation; interviews with Ghetto Administration staff conducted by the author; statistical data regarding the housing situation in the area involved; general statistics regarding the housing situation in the ghetto; a table of births and deaths, November 1940-January 1941; forms from this period and instructions for filling them out are appended to the report.