'Between Tomb and Cist by archaeologist Beverley Ballin Smith reports on the Historic Scotland funded investigation of the funerary monuments of Crantit, Kewing and Nether Onston, Orkney.'

http://www.orkneyjar.com/archaeology/2014/12/12/between-tomb-and-cist-new-book-launched/

http://www.culture24.org.uk//history-and-heritage/archaeology/art509924-tombs-in-neolithic-orkney-reveal-ancient-beliefs-taboos-and-superstitions-of-mourners-and-dead