@book { ReadingColour,
    title = "Reading Colour",
    subtitle = "George, Rilke, Kandinsky, Lasker-Schüler",
    author = "Rey {Conquer}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/b14732",
    url = "https://www.peterlang.com/document/1057583"
}