@Work{OL1812933W,
    title: {American Psycho},
    author: {Bret Easton Ellis and Mariano Antolín Rato},
    first_publish_year: {1991}
}

@Author{OL217475A,
    name: {Bret Easton Ellis},
    birth_date: {7 March 1964}
}
@Author{OL4570461A,
    name: {Mariano Antolín Rato},
}