@book { Shiftwork,
    title = "Shiftwork",
    subtitle = "Problems and Solutions",
    author = "W. Peter {Colquhoun} and Giovanni {Costa} and Simon {Folkard} and Peter {Knauth}",
    year = "1996",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1083564"
}