@InProceedings{l92-p329-343,
  AUTHOR    = {Alair Pereira~do~Lago},
  TITLE     = {On the Burnside Semigroups \(x^n = x^{n+m}\)},
  YEAR      = 1992,
  BOOKTITLE = {Proc.~of the 1st Latin American Symposium on Theoretical Informatics (LATIN'92)},
  ADDRESS   = {S\~ao Paulo, Brazil},
  PAGES     = {329--343},
  KEYWORDS  = {}}