@book { Nicknameninternational,
    title = "Nicknamen international",
    subtitle = "Zur Namenwahl in sozialen Medien in 14 Sprachen",
    author = "Peter {Schlobinski} and Torsten {Siever}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13496",
    url = "https://www.peterlang.com/document/1055183"
}