@Article{         Rounds:1970,
  Author        = "Rounds, William C.",
  affiliation   = "Case Western Reserve University USA",
  date-added    = "2012-10-16 12:44:34 +0000",
  date-modified = "2014-05-06 15:20:55 +0000",
  ISSN          = "1432-4350",
  Issue         = "3",
  Journal       = "Theory of Computing Systems",
  keyword       = "Computer Science",
  Keywords      = "dendrolanguages and tree-pushdown automata and tree transducers",
  Note          = "10.1007/BF01695769",
  Pages         = "257-287",
  Publisher     = "Springer New York",
  Title         = "Mappings and grammars on trees",
  URL           = "http://dx.doi.org/10.1007/BF01695769",
  Volume        = "4",
  Year          = "1970",
  bdsk-url-1    = "http://dx.doi.org/10.1007/BF01695769",
  File          = "Mappings and grammars on trees - Rounds (0) (0) - a - a - q.pdf",
  file-2        = "Mappings and grammars on trees - Rounds (1) (0) - a - a - q.pdf"
}

@Article{ Rounds:1970, Author = "Rounds, William C.", affiliation = "Case Western Reserve University USA", date-added = "2012-10-16 12:44:34 +0000", date-modified = "2014-05-06 15:20:55 +0000", ISSN = "1432-4350", Issue = "3", Journal = "Theory of Computing Systems", keyword = "Computer Science", Keywords = "dendrolanguages and tree-pushdown automata and tree transducers", Note = "10.1007/BF01695769", Pages = "257-287", Publisher = "Springer New York", Title = "Mappings and grammars on trees", URL = "http://dx.doi.org/10.1007/BF01695769", Volume = "4", Year = "1970", bdsk-url-1 = "http://dx.doi.org/10.1007/BF01695769", File = "Mappings and grammars on trees - Rounds (0) (0) - a - a - q.pdf", file-2 = "Mappings and grammars on trees - Rounds (1) (0) - a - a - q.pdf" }