@{,
author = {https://digital.katalog.queersearch.org/s/katalog/item/45011,},
year = {1974},
title = {Klappen-Sexualität: Homosexuelle Kontakte in der Öffentlichkeit},
publisher = {https://digital.katalog.queersearch.org/s/katalog/item/48574},
isbn = {3-432-02305-7}
}