Chotkowski J. Problems Of The Methodology Of Empirical Economic Research. Rocz. Nauk. Ekonom. Rol. Rozw. Obsz. Wiej. [Internet]. 2011 Jun. 26 [cited 2026 Nov. 10];98(2):74-8. Available from: https://rnr.sggw.edu.pl/article/view/9083