See the following two papers:

McDowell, S. (2007). Introduction to Commemoration, and to Commemoration in Northern Ireland. Web: CAIN.

Nagle, John. (2008). 'From Mourning to Melancholia? The Ambivalent Role of Commemoration in Facilitating Peace-Building in Northern Ireland', Early draft of paper published in the Irish Journal of Anthropology, 11(1): 28-34. ISSN: 1393-8592.