@Book{OL16911237M,
    title: {The New Annotated Dracula},
    author: {Bram Stoker},
    publisher: {W.W. Norton},
    year: {2008},
    place: {New York, NY, USA},
}

@Book{OL25440799M,
    title: {Divergent},
    author: {Veronica Roth},
    publisher: {Katherine Tegen Books an imprint of HarperCollinsPublishers},
    year: {2011},
}

@Book{OL26564878M,
    title: {Divergent series},
    author: {G. H. Hardy},
    year: {1963},
    place: {Oxford, Clarendon Press [1963]},
}

@Author{OL20865A,
    name: {G. H. Hardy},
    birth_date: {7 February 1877}
    , death_date: {1 December 1947}
}