See Ann Ellison and Peter Drewett, “Pits and Post-Holes in the British Early Iron Age: Some Alternative Explanations,” Proceedings of the Prehistoric Society 37 (1971), pp. 190–192; Peter Ucko, “Ethnography and Archaeological Interpretation of Funerary Remains,” World Archaeology 1 (1969), pp. 262–280; Ian Morris, Burial and Ancient Society: The Rise of the Greek City-State (Cambridge, 1987), p. 105.