@Author{OL9388A,
    name: {William Shakespeare},
    birth_date: {20 April 1564}
    , death_date: {23 April 1616}
}
@Author{OL31574A,
    name: {C.S. Lewis},
    birth_date: {29 November 1898}
    , death_date: {22 November 1963}
}
@Author{OL24638A,
    name: {Charles Dickens},
    birth_date: {7 February 1812}
    , death_date: {9 June 1870}
}
@Author{OL3281573A,
    name: {Sir Francis Drake},
    birth_date: {1540?}
    , death_date: {1596}
}