Volcano Monitoring in Indonesia

Thank you in advance. In another post, you said about some materials in this website, https://saredu.dlr.de/unit/insar_basics, but it doesn’t work. Do you have the materials of this site? You suggested this website in post titled " Some explanations about concepts of fringes of interferogram and coherence". I do really appreciate if you guide me to access these great files.

Best regards,
Sayyed