Prison ethnography

As my research increasingly implicates me in the world of prisoners, it's been good to engage with some literature dealing with prison ethnography, including:

• Loic Wacquant, “The Curious Eclipse of Prison Ethnography in the Age of Mass Incarceration.” Ethnography 3-4 (Winter 2002), Special issue on “In and Out of the Belly of the Beast: Dissecting the Prison”: 371-397. http://loicwacquant.net/debates/theory-and-ethnography/
• James Sutton, "An Ethnographic Account pf Doing Survey Research in Prison: Descriptions, Reflections, and Suggestions from the Field" Qualitative Sociology Review, Vol VII, Issue 2 - August 2011
• James B Waldram, "Challenges of Prison Ethnography"Anthropology News January 2009 p. 4
• Shanta Singh, "Being a Criminology Ethnographer in a South African Prison: A Search for Dynamics and Prevalence of HIV/AIDS in the Westville Prison, Durban, South Africa" J. Soc. Sci., 15(1): 71-82 (2007)
• I missed this conference on 'Resisting the Eclipse: An International Symposium on Prison Ethnography http://www.open.ac.uk/icccr/events/prison-ethnography/

Anyone got any other suggestions?

Image source: http://www.onelargeprawn.co.za/2011/03/15/marked-men-russian-prison-tattoos-2/