@book { SobraniesoinenijGesammelteWerke,
    title = "Sobranie sočinenij. Gesammelte Werke",
    author = "Fëdor {Sologub} and Ulrich {Steltner}",
    year = "1992",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12329",
    url = "https://www.peterlang.com/document/1066828"
}