https://archive.org/details/ufo-landet-in-suffolk-augenzeuge-ufo-bild
https://archive.org/details/die-bruderschaft-des-blutes-konnte-ihr-geheimnis-die-welt-verandern-mythen-metzger
https://archive.org/details/tempel-des-lichts-art-stories-monumente-mit-seele-arte
https://archive.org/details/gibt-es-den-zufall-arte
https://archive.org/details/eine-kulturgeschichte-des-alters
https://archive.org/details/herfried-munkler-demokratie-in-gefahr
https://archive.org/details/genial-gartnern-arte
https://archive.org/details/marchen-aus-afrika-erzahlt-von-michael-kohlmeier
https://archive.org/details/die-jagd-der-nazis-nach-dem-heiligen-gral-real-stories-deutschland