@Article{         ChengKaminski:CFL:AI98,
  Author        = "Cheng, Edward Y. C. and Kaminski, Michael",
  date-added    = "2013-10-14 16:36:33 +0000",
  date-modified = "2015-04-13 14:08:22 +0000",
  ee            = "http://link.springer.de/link/service/journals/00236/bibs/8035003/80350245.htm",
  Journal       = "Acta Inf.",
  Number        = "3",
  Pages         = "245--267",
  Title         = "Context-Free Languages over Infinite Alphabets",
  Volume        = "35",
  Year          = "1998",
  File          = "Context-Free Languages over Infinite Alphabets - Cheng, Kaminski (0) (0) - a - a - u.pdf"
}

@Article{ ChengKaminski:CFL:AI98, Author = "Cheng, Edward Y. C. and Kaminski, Michael", date-added = "2013-10-14 16:36:33 +0000", date-modified = "2015-04-13 14:08:22 +0000", ee = "http://link.springer.de/link/service/journals/00236/bibs/8035003/80350245.htm", Journal = "Acta Inf.", Number = "3", Pages = "245--267", Title = "Context-Free Languages over Infinite Alphabets", Volume = "35", Year = "1998", File = "Context-Free Languages over Infinite Alphabets - Cheng, Kaminski (0) (0) - a - a - u.pdf" }