@book { DermoderneMenschundseineZukunft, title = "Der moderne Mensch und seine Zukunft", subtitle = "Modern Man and the Future", author = "Erich {Fromm} and Rainer {Funk}", year = "2015", publisher = "Edition Erich Fromm", address = "München, Deutschland", url = "https://books.openpublishing.com/document/307246" }