See:
- Kenneth Brophy, Andrew Baines, Amelia Pannett: Megalith-Overkill: multiple stone rows of Caithness and Sutherland. 2013 University of Glasgow - http://www.gla.ac.uk/schools/humanities/research/archaeologyresearch/projects/multiplestonerows/
- http://www.caithnessarchaeology.org.uk/battle_moss.html
- http://www.megalithic.co.uk/article.php?sid=1832617348