Analysis of information sources in references of the Wikipedia article "Ocupação da Polónia (1939-1945)" in Portuguese language version.
The prisons, ghettos, internment, transit, labor and extermination camps, roundups, mass deportations, public executions, mobile killing units, death marches, deprivation, hunger, disease, and exposure all testify to the 'inhuman policies of both Hitler and Stalin' and 'were clearly aimed at the total extermination of Polish citizens, both Jews and Christians. Both regimes endorsed a systematic program of genocide.'
