@Work{OL76827W,
    title: {The Wealth of Nations},
    author: {Adam Smith},
    first_publish_year: {1776}
}

@Work{OL60358W,
    title: {Common Sense},
    author: {Thomas Paine},
    first_publish_year: {1776}
}

@Work{OL26594W,
    title: {Poor Richard's almanac},
    author: {Benjamin Franklin},
    first_publish_year: {1886}
}

@Author{OL26170A,
    name: {Benjamin Franklin},
    birth_date: {17 January 1706}
    , death_date: {17 April 1790}
}