https://archive.org/details/afrika-den-ersten-menschen-auf-der-spur-arte
https://archive.org/details/300-jahre-kant-aufklarung-ist-wichtiger-denn-je-sternstunde-philosophie-srf-kultur
https://archive.org/details/die-simulation-von-gehirnen-zoomposium-mit-prof.-petra-ritter
https://archive.org/details/20.000-meteore-pro-stunde-meteorbeobachtungen-mit-radarsystemen-toralf-renkwitz
https://archive.org/details/erich-von-daniken-die-wahre-geschichte-der-menschheit
https://archive.org/details/anonymous-i-saw-the-sign-arte
https://archive.org/details/reprasentative-demokratie-als-mittel-zur-verhinderung-von-demokratie-die-brucke-