American Antiquarian founded by Rev. Stephen D. Peet.
Isaac Fletcher - "The Archaeology of the West Cumberland Coal Trade", Transactions of the Cumberland and Westmorland Antiquarian & Archaeological Society.
^"The Balawat Gates". British Museum. Retrieved 25 May 2017.
^Koffmar, Linda (2017-09-08). "Första DNA-bevisen för kvinnlig vikingakrigare" [First DNA evidence for female Viking warriors] (Press release) (in Swedish). Uppsala University. Archived from the original on 2017-09-17. Retrieved 2020-07-09.
^Holland, Robert (2012). Blue-Water Empire: The British in the Mediterranean since 1800. Penguin UK. ISBN 9781846145551.