@book { TheRighteousnessofLife,
    title = "The Righteousness of Life",
    subtitle = "William Soutar: A Poet's Scottish Predilection for Philosophy",
    author = "Heidelinde {Prüger}",
    year = "1998",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1086788"
}