@Work{OL2556264W,
    title: {The architecture of castles},
    author: {R. Allen Brown},
    first_publish_year: {1984}
}

@Work{OL5475536W,
    title: {Castles},
    author: {Sidney Toy},
    first_publish_year: {1939}
}

@Author{OL1295635A,
    name: {Sidney Toy},
}