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@Book{            book:71912,
  Author        = "Lyndon, Roger C. and Schupp, Paul E.",
  date-added    = "2022-04-20 20:49:05 +0200",
  date-modified = "2022-04-25 19:00:01 +0200",
  ISBN          = "3540411585,9783540411581,3540076425,9783540076421,0387076425,9780387076423",
  Publisher     = "Springer",
  Series        = "Classics in mathematics",
  Title         = "Combinatorial group theory",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=7484c4292e46441e2a902f2d44238063",
  Year          = "2001",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=7484c4292e46441e2a902f2d44238063",
  File          = "Combinatorial group theory (Roger C. Lyndon, Paul E. Schupp) (z-lib.org).djvu",
  file-2        = "[Classics in Mathematics 89] Roger C. Lyndon, Paul E. Schupp (auth.) - Combinatorial Group Theory (2001, Springer-Verlag Berlin Heidelberg) - libgen.lc.pdf"
}

@Book{ book:71912, Author = "Lyndon, Roger C. and Schupp, Paul E.", date-added = "2022-04-20 20:49:05 +0200", date-modified = "2022-04-25 19:00:01 +0200", ISBN = "3540411585,9783540411581,3540076425,9783540076421,0387076425,9780387076423", Publisher = "Springer", Series = "Classics in mathematics", Title = "Combinatorial group theory", URL = "http://gen.lib.rus.ec/book/index.php?md5=7484c4292e46441e2a902f2d44238063", Year = "2001", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=7484c4292e46441e2a902f2d44238063", File = "Combinatorial group theory (Roger C. Lyndon, Paul E. Schupp) (z-lib.org).djvu", file-2 = "[Classics in Mathematics 89] Roger C. Lyndon, Paul E. Schupp (auth.) - Combinatorial Group Theory (2001, Springer-Verlag Berlin Heidelberg) - libgen.lc.pdf" }