@Article{         Ehrenfeucht1956,
  Author        = "Ehrenfeucht, Andrzej and Mostowski, Andrzej",
  date-added    = "2017-07-10 20:48:38 +0000",
  date-modified = "2017-07-10 20:48:38 +0000",
  Journal       = "Fundamenta Mathematicae",
  Keywords      = "Foundations; Philosophy; Mathematical Logic",
  Language      = "eng",
  Number        = "1",
  Pages         = "50-68",
  Title         = "Models of axiomatic theories admitting automorphisms",
  URL           = "http://eudml.org/doc/213400",
  Volume        = "43",
  Year          = "1956",
  bdsk-url-1    = "http://eudml.org/doc/213400",
  File          = "paper (1) - a - a - h.pdf",
  file-2        = "fm4316 (0) - a - a - h.pdf"
}

@Article{ Ehrenfeucht1956, Author = "Ehrenfeucht, Andrzej and Mostowski, Andrzej", date-added = "2017-07-10 20:48:38 +0000", date-modified = "2017-07-10 20:48:38 +0000", Journal = "Fundamenta Mathematicae", Keywords = "Foundations; Philosophy; Mathematical Logic", Language = "eng", Number = "1", Pages = "50-68", Title = "Models of axiomatic theories admitting automorphisms", URL = "http://eudml.org/doc/213400", Volume = "43", Year = "1956", bdsk-url-1 = "http://eudml.org/doc/213400", File = "paper (1) - a - a - h.pdf", file-2 = "fm4316 (0) - a - a - h.pdf" }