@Work{OL15335449W,
    title: {Lun yü},
    author: {Confucius},
    first_publish_year: {1900}
}

@Work{OL28124W,
    title: {The 21 Irrefutable Laws of Leadership},
    author: {John C. Maxwell},
    first_publish_year: {1998}
}

@Author{OL26423A,
    name: {John C. Maxwell},
    birth_date: {1947}
}