Zalewski, Romuald, and Krzysztof Góralski. 2011. “INNOVATIVENESS OF FOOD PRODUCTION ENTERPRISES IN WIELKOPOLSKIE VOIVODSHIP FROM THE PERSPECTIVE OF PRODUCERS”. Acta Scientiarum Polonorum. Oeconomia 10 (1), 139-48. https://js.wne.sggw.pl/index.php/aspe/article/view/4003.