@InProceedings{l02-p508-515, AUTHOR = {Michael~A. Bender and Martin Farach-Colton}, TITLE = {The Level Ancestor Problem Simplified}, YEAR = 2002, BOOKTITLE = {Proc.~of the 5th Latin American Symposium on Theoretical Informatics (LATIN'02)}, ADDRESS = {Cancun, Mexico}, PAGES = {508--515}, KEYWORDS = {}}