Macijei,
you got it. That's the new location of the "Hugo Junkers Homepage":
http://hugojunkers.bplaced.net/
They have also some limitations .. you need to login every two month
otherwise the site will be deactivated. However, bplaced is sending an email in advance and I'll try to login before they shutdown the site. So, if it might disappear, it will be back within a short period.
Even if I am no longer statisfied with the contents (meanwhile it represents my knowledge 30 years ago), I decided to keep it online in a new look. But the contents is unchanged since 2006. So, be critical, what you find, especially with old entries.
Updates will come up, whenever I am covering a topic with my current work. Hope, you find it usefull nevertheless,
Greetings, Horst