Wróblewski, S. “CONTRIBUTION OF POLAND INTO COMPETITIVENESS OF EUROPE ON THE GLOBAL MARKET OF BUSINESS TOURISM”. Acta Scientiarum Polonorum. Oeconomia, Vol. 9, no. 4, Dec. 2010, pp. 607-15, https://js.wne.sggw.pl/index.php/aspe/article/view/3986.