@Book{OL20504786M,
    title: {Pride and Prejudice},
    author: {Jane Austen},
    publisher: {R. Bentley},
    year: {1853},
    place: {London, England},
}

@Work{OL8379727W,
    title: {The greatest thing in the world},
    author: {Henry Drummond},
    first_publish_year: {1890}
}

@Author{OL2791618A,
    name: {Henry Drummond},
    birth_date: {1851}
    , death_date: {1897}
}