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@Book{            book:2234220,
  Author        = "Frova, Andrea",
  date-added    = "2020-04-10 11:07:26 +0200",
  date-modified = "2020-04-10 11:07:26 +0200",
  Edition       = "1",
  ISBN          = "9788808090126",
  Publisher     = "Zanichelli",
  Title         = "Fisica nella musica",
  URL           = "http://gen.lib.rus.ec/book/index.php?md5=1f7cc845e1e728774af1ab7157dea2c5",
  Year          = "1999",
  bdsk-url-1    = "http://gen.lib.rus.ec/book/index.php?md5=1f7cc845e1e728774af1ab7157dea2c5",
  File          = "Andrea Frova-Fisica nella musica-Zanichelli (1999) (0) - a - a.pdf"
}

@Book{ book:2234220, Author = "Frova, Andrea", date-added = "2020-04-10 11:07:26 +0200", date-modified = "2020-04-10 11:07:26 +0200", Edition = "1", ISBN = "9788808090126", Publisher = "Zanichelli", Title = "Fisica nella musica", URL = "http://gen.lib.rus.ec/book/index.php?md5=1f7cc845e1e728774af1ab7157dea2c5", Year = "1999", bdsk-url-1 = "http://gen.lib.rus.ec/book/index.php?md5=1f7cc845e1e728774af1ab7157dea2c5", File = "Andrea Frova-Fisica nella musica-Zanichelli (1999) (0) - a - a.pdf" }