@Work{OL113174W,
    title: {The English in the middle ages},
    author: {J. Frederick Hodgetts},
    first_publish_year: {1885}
}

@Work{OL3777218W,
    title: {Medieval foundation},
    author: {Arthur Bryant},
    first_publish_year: {1966}
}

@Work{OL1962934W,
    title: {Vikings},
    author: {Rachel Wright},
    first_publish_year: {1992}
}

@Work{OL80370W,
    title: {The history of England from the accession of Richard II to the death of Richard III, 1377-1485},
    author: {Charles William Chadwick Oman},
    first_publish_year: {1906}
}

@Author{OL28991A,
    name: {Charles William Chadwick Oman},
    birth_date: {1860-01-12}
    , death_date: {1946-06-23}
}