Łuczka-Bakuła, W. “Development of Organic Farming Vs the Support From the RDP 2004-2006 (Rural Development Programme) and RDP 2007-2013”. Journal of Agribusiness and Rural Development, Vol. 30, no. 4, Dec. 2013, pp. 161-75, http://www1.up.poznan.pl/jard/index.php/jard/article/view/692.