https://archive.org/details/schwarze-locher-und-unsichtbare-materie-spacetime-doku
https://archive.org/details/dr.-wolfgang-schmidbauer-die-angst-vor-dem-weniger-warum-uns-der-konsumwandel-so-schwer-faellt
https://archive.org/details/tess-gerritsen-abendruh-1
https://archive.org/details/tess-gerritsen-abendruh-2
https://archive.org/details/wildes-denken-gesprach-mit-dem-philosophen-jochen-kirchhoff
https://archive.org/details/michael-lister-selbstausloeser
https://archive.org/details/ehemaliger-leiter-des-israelischen-weltraumprogramms-ausserirdische-sind-hier
https://archive.org/details/darf-man-im-ausnahmefall-foltern-sternstunde-philosophie-srf-kultur
https://archive.org/details/in-den-pyramiden-passiert-etwas