The editor of the book by Fabio Ricci
Centre for Research on the History of Sexual Science
The photografic legacy of Elisàr von Kupffer and Eduard von Mayer
The Association for the preservation of the audiovisual heritage of Switzerland
The Swiss organization for gay managers
The international society for the preservation of cycloramas
The website of the municipality with the opening times of the Centro culturale Elisarion
The website of the Fondazione Centro Stefano Franscini of the ETH Zurich on the Monte Verità in Ascona. With information on the history of the “Mountain oft the truth” and the Museum Casa Anatta, which also includes the pavilion with the cyclorama “The Clear World of the Blissful” of Elisàr von Kupffer.