Czyżewski, Andrzej, 		Grzelak, Aleksander, AND 		Kryszak, Łukasz.
" Determinants of income of agricultural holdings in EU countries" <em>&lt;center&gt;Conference Proceedings &lt;BR&gt; Determinants Of Regional Development&lt;/center&gt;</em> [Online],  Number 1 (8 January 2019)