"The Warsaw ghetto : a guide to the perished city / B. Engelking, J. Leociak. – New Haven 2009. – p.295, 296" . "On 1939-09-14, the Komisja Koordynacyjna Żydowskich Instytucji Społecznych was set up as one of the parts of the civil defense of Warsaw. In the first months of the occupation the KK organized district offices, set up a Section for Care of Refugees and Those Made Homeless and a Section for People's Kitchens."@eng . "Komisja Koordynacyjna Żydowskich Instytucji Społecznych"@eng . .