@TechReport{      Klein2001,
  Author        = "Klein, Anne B. and Murata, Makoto and Wood, Derick",
  citeulike-article-id="1820538",
  date-added    = "2013-07-15 09:58:16 +0000",
  date-modified = "2013-07-15 09:58:16 +0000",
  Institution   = "The Hongkong University of Science and Technology",
  Keywords      = "bibtex-import",
  Number        = "HKUST-TCSC-2001-0",
  posted-at     = "2007-10-25 11:25:11",
  priority      = "0",
  Title         = "{Regular tree and regular hedge languages over unranked alphabets: Version 1}",
  Year          = "2001",
  File          = "Regular tree and regular hedge languages over unranked alphabets Version 1 - Klein, Murata, Wood (0) (0) - a - a - s.pdf"
}

@TechReport{ Klein2001, Author = "Klein, Anne B. and Murata, Makoto and Wood, Derick", citeulike-article-id="1820538", date-added = "2013-07-15 09:58:16 +0000", date-modified = "2013-07-15 09:58:16 +0000", Institution = "The Hongkong University of Science and Technology", Keywords = "bibtex-import", Number = "HKUST-TCSC-2001-0", posted-at = "2007-10-25 11:25:11", priority = "0", Title = "{Regular tree and regular hedge languages over unranked alphabets: Version 1}", Year = "2001", File = "Regular tree and regular hedge languages over unranked alphabets Version 1 - Klein, Murata, Wood (0) (0) - a - a - s.pdf" }