@inproceedings{whittle1998parc,
  title={Parc le Breos Cwm transepted long cairn, Gower, West Glamorgan: Date, contents, and context},
  author={Whittle, Alasdair and Wysocki, Michael and Richards, Mike and Rouse, Amanda and Walker, Elizabeth and Zienkiewicz, Lesley},
  booktitle={Proceedings of the Prehistoric Society},
  volume={64},
  pages={139--182},
  year={1998},
  organization={Cambridge Univ Press}
}