Houghton, Frank, and Kevin Kelleher. “Residence Coding in the Hospital In-Patient Enquiry (HIPE) System: Significantly Worse Than Anticipated”. Irish Geography 35, no. 1 (August 11, 2014): 95–98. Accessed May 6, 2026. https://irishgeography.ie/index.php/irishgeography/article/view/251.