@Periodical{      UW2011,
  date-added    = "2018-10-22 09:56:21 +0000",
  date-modified = "2018-10-22 09:57:16 +0000",
  Title         = "Uniwersytet Warszawski - Pismo Uczelni",
  Year          = "2011",
  File          = "443wrzesień2009 (0) - a - a - f.pdf"
}

@Periodical{ UW2011, date-added = "2018-10-22 09:56:21 +0000", date-modified = "2018-10-22 09:57:16 +0000", Title = "Uniwersytet Warszawski - Pismo Uczelni", Year = "2011", File = "443wrzesień2009 (0) - a - a - f.pdf" }