@Article{         Nash-Williamsa,
  Author        = "Nash-Williams, Crispin St. John Alvah",
  date-added    = "2012-12-01 14:57:28 +0000",
  date-modified = "2012-12-01 15:06:50 +0000",
  Journal       = "Proc. Camb. Phil. Soc.",
  Keywords      = "well quasi-orders",
  Pages         = "697",
  Title         = "On well-quasi-ordering infinite trees",
  Volume        = "61",
  Year          = "1965",
  File          = "On well-quasi-ordering infinite trees - Nash-Williams (0) (0) - a - a - z.pdf"
}

@Article{ Nash-Williamsa, Author = "Nash-Williams, Crispin St. John Alvah", date-added = "2012-12-01 14:57:28 +0000", date-modified = "2012-12-01 15:06:50 +0000", Journal = "Proc. Camb. Phil. Soc.", Keywords = "well quasi-orders", Pages = "697", Title = "On well-quasi-ordering infinite trees", Volume = "61", Year = "1965", File = "On well-quasi-ordering infinite trees - Nash-Williams (0) (0) - a - a - z.pdf" }