@inproceedings{VLDB-1999-Chawathe,
	author        = "Sudarshan S. Chawathe",
	booktitle     = "{Proceedings of the 25th International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1999/P8.pdf",
	isbn          = "1-55860-615-7",
	pages         = "90--101",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Comparing Hierarchical Data in External Memory}",
	year          = 1999,
}