Maciejczak, Mariusz. 2016. “REAL-TIME DELPHI SURVEY ON COMPETITION AND COMPETITIVENESS OF GEOGRAPHICAL INDICATIONS AS A NEGOTIATIONS" ISSUE OF THE TRANSATLANTIC TRADE AND INVESTMENT PARTNERSHIP”. Acta Scientiarum Polonorum. Oeconomia 15 (1):65-74. https://aspe.sggw.edu.pl/article/view/403.