@book { DorisLessingALifeBehindtheScenes,
    title = "Doris Lessing - A Life Behind the Scenes",
    subtitle = "The Files of the British Intelligence Service MI5",
    author = "Peter {Raina}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/b18231",
    url = "https://www.peterlang.com/document/1059476"
}