@book { FreimaurertumbeiPukin,
    title = "Freimaurertum bei Puškin",
    author = "Markus {Wolf}",
    year = "1997",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12574",
    url = "https://www.peterlang.com/document/1067023"
}