@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  = {}}