@book { IKeepMyCool,
    title = "I Keep My Cool",
    author = "Martina {Pröll}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01079-4",
    url = "https://www.peterlang.com/document/1045824"
}