@article{GLR2009,
	Author = {Glen, Amy and Lev{\'e}, Florence and Richomme, Gw{\'e}na{\"e}l},
	Journal = {RAIRO - Theoretical Informatics and Applications},
	Keywords = {Episturmian word, Sturmian word, Arnoux-Rauzy sequence, Episturmian morphism, Directive word},
        Volume = {43},
	Number = {2},
	Pages = {299-319},
	Title = {Directive words of episturmian words: equivalences and normalization Directive words of episturmian words: equivalences and normalization},
	Year = {2009}}