✓

@Book{            book:1157481,
  Author        = "Cassidy, P. and Guo, Li and Keigher, William F. and Cassidy, Phyllis J. and Sit, William Y.",
  date-added    = "2020-04-12 08:13:09 +0200",
  date-modified = "2020-04-12 08:53:50 +0200",
  Edition       = "1st",
  ISBN          = "9810247036, 9789810247034, 9789812778437, 9789814490504",
  Publisher     = "World Scientific Publishing Company",
  Title         = "Differential Algebra \& Related Topics",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=9c5a8abf0638e94a612613581c6fd846",
  Year          = "2002",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=9c5a8abf0638e94a612613581c6fd846",
  File          = "Differential Algebra Related Topics by P. Cassidy, Li Guo, William F. Keigher, Phyllis J. Cassidy, William Y. Sit (z-lib.org) - a.pdf"
}

@Book{ book:1157481, Author = "Cassidy, P. and Guo, Li and Keigher, William F. and Cassidy, Phyllis J. and Sit, William Y.", date-added = "2020-04-12 08:13:09 +0200", date-modified = "2020-04-12 08:53:50 +0200", Edition = "1st", ISBN = "9810247036, 9789810247034, 9789812778437, 9789814490504", Publisher = "World Scientific Publishing Company", Title = "Differential Algebra \& Related Topics", URL = "http://gen.lib.rus.ec/book/index.php?md5=9c5a8abf0638e94a612613581c6fd846", Year = "2002", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=9c5a8abf0638e94a612613581c6fd846", File = "Differential Algebra Related Topics by P. Cassidy, Li Guo, William F. Keigher, Phyllis J. Cassidy, William Y. Sit (z-lib.org) - a.pdf" }