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@Book{            book:875001,
  Author        = "Schwarz, Fritz",
  date-added    = "2020-08-10 16:29:37 +0200",
  date-modified = "2020-08-10 16:29:37 +0200",
  ISBN          = "3709112850",
  Publisher     = "springer",
  Title         = "Loewy Decomposition of Linear Differential Equations",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=84a3a77d6527d406fef6cfeb95283ec0",
  Year          = "2012",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=84a3a77d6527d406fef6cfeb95283ec0",
  File          = "Loewy Decomposition of Linear Differential Equations by Fritz Schwarz (z-lib.org) - a.pdf"
}

@Book{ book:875001, Author = "Schwarz, Fritz", date-added = "2020-08-10 16:29:37 +0200", date-modified = "2020-08-10 16:29:37 +0200", ISBN = "3709112850", Publisher = "springer", Title = "Loewy Decomposition of Linear Differential Equations", URL = "http://gen.lib.rus.ec/book/index.php?md5=84a3a77d6527d406fef6cfeb95283ec0", Year = "2012", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=84a3a77d6527d406fef6cfeb95283ec0", File = "Loewy Decomposition of Linear Differential Equations by Fritz Schwarz (z-lib.org) - a.pdf" }