Grzelak, A., and B. Kiełbasa. “ASSESSMENT OF THE USE OF THE EUROPEAN UNION FUNDS TO SUPPORT INVESTMENTS ON POLISH FARMS IN THE REGIONAL PERSPECTIVE”. Acta Scientiarum Polonorum. Oeconomia, vol. 13, no. 2, June 2014, pp. 49-60, https://aspe.sggw.edu.pl/article/view/496.