https://archive.org/details/ken-fm-ethik-oder-etat-sind-unsere-werte-nur-boersenwerte
https://archive.org/details/wie-man-an-sich-selbst-glaubt-dr.-joseph-murphy
https://archive.org/details/giles-blunt-eisiges-herz
https://archive.org/details/peter-predehl-auf-der-jagd-nach-der-natur-der-dunklen-energie