"Bloody Sunday" . "pacification of Bydgoszcz" . "\\\"Bloody Sunday\\\"" . . . . "Bloody Sunday (1939)" . . . . . . . "Bydgoszcz \\\"Bloody Sunday\\\"" . . . "Bydgoszcz bloody Sunday" . "Bydgoszcz's Bloody Sunday" . . . . "Bloody Sunday (1939)" . "bloody Sunday" . "Bydgoszcz Bloody Sunday" . "Bloody Sunday events of 1939" .