Nazi paperwork for the Final Solution

States that some day, survivors, liberators, bystanders and perpetrators will all be gone. A generation will disappear, and future generations will be left only with documentary record to counter inevitable revisionist skepticism and denial. Memoirs, oral history, courtroom testimony are indirect and subjective. The most reliable sources are primary textual sources, contemporaneous, provided they are authentic. Copies of some of these are reproduced here