@inproceedings{CSMR-2009-AbebeHMTA,
	author        = "Surafel Lemma Abebe and Sonia Haiduc and Andrian Marcus and Paolo Tonella and Giuliano Antoniol",
	booktitle     = "{Proceedings of the 13th European Conference on Software Maintenance and Reengineering}",
	doi           = "10.1109/CSMR.2009.61",
	editor        = "Andreas Winter and Rudolf Ferenc and Jens Knodel",
	pages         = "189--198",
	publisher     = "{IEEE}",
	title         = "{Analyzing the Evolution of the Source Code Vocabulary}",
	year          = 2009,
}