@InProceedings{l04-p279-291,
  AUTHOR    = {John Rhodes and Benjamin Steinberg},
  TITLE     = {Join Irreducible Pseudovarieties, Group Mapping and Kovacs-Newman Semigroups},
  YEAR      = 2004,
  ADDRESS   = {Buenos Aires, Argentina},
  BOOKTITLE = {Proc.~of the 6th Latin American Symposium on Theoretical Informatics (LATIN'04)},
  PAGES     = {279--291},
  KEYWORDS  = {}}