@Book{OL32664646M,
    title: {A Game of Thrones},
    author: {George R. R. Martin},
    publisher: {Bantam Books},
    year: {2015},
    place: {New York},
}

@Author{OL234664A,
    name: {George R. R. Martin},
    birth_date: {September 20, 1948}
}