https://archive.org/details/evelyn-summhammer-komm-doch-mal-runter-vom-souveranen-umgang-mit-arger-wut-und-aggressionen-1
https://archive.org/details/evelyn-summhammer-komm-doch-mal-runter-vom-souveranen-umgang-mit-arger-wut-und-aggressionen-2
https://archive.org/details/michaele-kundermann-emotionale-stress-kompetenz-1_202206
https://archive.org/details/michaele-kundermann-emotionale-stress-kompetenz-2_202206
https://archive.org/details/the-midnigt-mansion-gedanken-und-erganzungen-zu-bigfoot-und-dem-patterson-gimlin-film
https://archive.org/details/michael-katz-krefeld-die-geisel-1
https://archive.org/details/michael-katz-krefeld-die-geisel-2
https://archive.org/details/wer-denkt-mich-gunnar-kaiser