^Diebold, Ruth (15 November 1985). "Polish Cookery". Library Journal. 110 (19): 97. Poland's cuisine, influenced by its German, Austrian, Hungarian, Russian, and other conquerors over the centuries. See also: Eve Zibart, The Ethnic Food Lover's Companion, p. 114. "Polish cuisine displays its German-Austrian history in its sausages, particularly the garlicky kielbasa (or kolbasz), and its smoked meats." (p. 108.)
^Nigel Roberts (12 April 2011), The Bradt Travel Guide 2, Belarus, page 81, (2nd), ISBN1841623407. "Like Ukrainians, Russians and Poles, Belarusians are still fond of borscht with a very large dollop of sour cream (smyetana) and it is particularly warming and nourishing in the depths of winter."