Bas Basten. Tracking Down the Origins of Ambiguity in Context-Free Grammars. Cavalcanti, Ana and Deharbe, David and Gaudel, Marie-Claude and Woodcock, Jim.
Seventh International Colloquium on Theoretical Aspects of Computing (ICTAC 2010), Sep 2010, Natal, Brazil. Springer, 6255, pp.76-90, 2010,
〈10.1007/978-3-642-14808-8_6〉.
〈inria-00535879〉 
