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@Book{            book:73464,
  Author        = "Ulam, S. M.",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:26 +0200",
  Location      = "73000/9f233a67584e4438c7c7cc4ec23481b7",
  md5           = "9F233A67584E4438C7C7CC4EC23481B7",
  resid         = "73464",
  size          = "1335137",
  status        = "OK",
  subject       = "Mathematics",
  Title         = "Problems in Modern Mathematics",
  Type          = "djvu",
  URL           = "73000/9f233a67584e4438c7c7cc4ec23481b7",
  bdsk-url-1    = "73000/9f233a67584e4438c7c7cc4ec23481b7",
  File          = "S. M. Ulam Problems in Modern Mathematics (0) - a - a.pdf",
  file-2        = "S. M. Ulam Problems in Modern Mathematics (0) - a - a.djvu"
}

@Book{ book:73464, Author = "Ulam, S. M.", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:26 +0200", Location = "73000/9f233a67584e4438c7c7cc4ec23481b7", md5 = "9F233A67584E4438C7C7CC4EC23481B7", resid = "73464", size = "1335137", status = "OK", subject = "Mathematics", Title = "Problems in Modern Mathematics", Type = "djvu", URL = "73000/9f233a67584e4438c7c7cc4ec23481b7", bdsk-url-1 = "73000/9f233a67584e4438c7c7cc4ec23481b7", File = "S. M. Ulam Problems in Modern Mathematics (0) - a - a.pdf", file-2 = "S. M. Ulam Problems in Modern Mathematics (0) - a - a.djvu" }