@Article{         kowalski:PTM,
  Author        = "Kowalski, Janusz",
  date-added    = "2017-12-07 09:03:20 +0000",
  date-modified = "2017-12-19 12:51:40 +0000",
  Title         = "The Polish Mathematical The Polish Mathematical Society (PTM)",
  File          = "page24 (0) - a - a - v.pdf"
}

@Article{ kowalski:PTM, Author = "Kowalski, Janusz", date-added = "2017-12-07 09:03:20 +0000", date-modified = "2017-12-19 12:51:40 +0000", Title = "The Polish Mathematical The Polish Mathematical Society (PTM)", File = "page24 (0) - a - a - v.pdf" }