Witkowska, Dorota, and Dorota Żebrowska-Suchodolska. “RESEARCH OF WSE EFFICIENCY BASED ON SELECTED INDEXES: TEST OF AUTOCORRELATION”. Acta Scientiarum Polonorum. Oeconomia 7, no. 4 (December 30, 2008): 155–162. Accessed May 8, 2024. https://aspe.sggw.edu.pl/article/view/821.