@InProceedings{l02-p263-277, AUTHOR = {Enrico Pontelli and Desh Ranjan}, TITLE = {Ancestor Problems on Pure Pointer Machines}, YEAR = 2002, BOOKTITLE = {Proc.~of the 5th Latin American Symposium on Theoretical Informatics (LATIN'02)}, ADDRESS = {Cancun, Mexico}, PAGES = {263--277}, KEYWORDS = {}}