@Book{OL27211583M,
    title: {Les misérables},
    author: {Victor Hugo},
    publisher: {Signet},
    year: {2013},
}

@Book{OL35497312M,
    title: {Gone Girl},
    author: {Gillian Flynn},
    publisher: {Crown Publishing Group, The},
    year: {2012},
}

@Author{OL1433006A,
    name: {Gillian Flynn},
    birth_date: {1971-02-24}
}