1395.
Emania: bulletin of the Navan Research Group 3 (Autumn, 1987): Focus on the Black Pig’s Dyke and borders.
Navan Research Group
1396.
Williams (Fionnuala): The Black Pig and linear earthworks.
In Emania 3 (Autumn, 1987), pp. 12–19.

1397.
O’Donovan (Patrick): An Cladh Ruadh: a travelling earthwork from Co. Kerry.
In Emania 3 (Autumn, 1987), pp. 20–21.

1398.
Tarzia (Wade): No trespassing: border defence in the Táin bó Cuailnge.
In Emania 3 (Autumn, 1987), pp. 28–33.