Abstract: Journal Article Functional Dependencies with null Markers Get access Antonio Badia, Antonio Badia * 1CECS Department, University of Louisville, Louisville, KY 40292, USA *Corresponding author: [email protected] Search for other works by this author on: Oxford Academic Google Scholar Daniel Lemire Daniel Lemire 2LICEF, Université du Québec, 5800 Saint-Denis, Montreal, QC, Canada H2S 3L5 Search for other works by this author on: Oxford Academic Google Scholar The Computer Journal, Volume 58, Issue 5, May 2015, Pages 1160–1168, https://doi.org/10.1093/comjnl/bxu039 Published: 15 May 2014 Article history Received: 28 October 2013 Revision received: 16 April 2014 Published: 15 May 2014