@Walter Hinteler,
Well I only took 3 years of german and the last year that I took it, I was the only student. So to answer your question, no my german isn't good enough to read it.
It doesn't matter. I didn't use german as my source. There are plenty of sites that host holocaust survivor stories. These are people who claimed to have experienced it first hand. These stories are told in english or translated.
If you want to say these stories are not credible, then I would agree with you. I don't hold personal testimony with very much value. Courts of law don't even hold personal testimony with much value.
Just like I know there are thousands of people who claimed to have seen aliens and they tell their stories. I still don't believe aliens are visiting the earth.
Just like I know there are thousands of people who claimed to have seen bigfoot and they tell their stories. I still don't believe that bigfoot exists.
However; you can take what someone says in their story. The details and see if they add up to anything credible. You can test their numbers, dates, and validity to see if it adds up. This is what I have done.