2007,第221–222頁. The 'emptychair' policy. CVCE. [4 May 2013]. (原始内容存档于2013-09-21). Ludlow, N. De-commissioning the EmptyChairCrisis: the Community institutions
wegorzewo.wm.pl. [2022-05-19]. (原始内容存档于2020-07-08). Why Do Poles Leave One ChairEmpty on Christmas Eve?. Culture.pl. [2022-05-19]. (原始内容存档于2022-05-31). turoń