@conference {381,
	title = {Saturation, Definability, and Separation for XPath on Data Trees},
	booktitle = {Proceedings of the 9th Alberto Mendelzon International Workshop on Foundations of Data Management, Lima, Peru, May 6 - 8, 2015.},
	year = {2015},
	url = {http://ceur-ws.org/Vol-1378/AMW_2015_paper_21.pdf},
	author = {Sergio Abriola and Mar{\'\i}a Emilia Descotte and Santiago Figueira}
}