Tutorial PDFs are gone!

The tutorials as PDFs which are listed at http://step.esa.int/main/doc/tutorials/sentinel-1-toolbox-tutorials/ all are empty amazon buckets. Does somebody know where I can find the PDFs? I am new to Sentinel data and would like to have a start from zero.

I do not know if they are the same, but try these as long as the others are down

Thank you!

And for all tutorials :