@Book{OL379262M,
    title: {The 48 Laws of Power},
    author: {Robert Greene and Joost Elffers},
    publisher: {Viking},
    year: {1998},
    place: {New York},
}

@Author{OL236414A,
    name: {Robert Greene},
    birth_date: {14 May 1959}
}
@Author{OL224036A,
    name: {Joost Elffers},
}