Kisiel, Roman, Aleksandra Kowalewska, and Joanna Kowalewska. “IMPACT OF IMPLEMENTED INNOVATIONS ON COMPETITIVENESS OF TOURISM COMPANIES IN THE WARMIŃSKO-MAZURSKIE VOIVODESHIP”. Acta Scientiarum Polonorum. Oeconomia 19, no. 4 (January 3, 2021): 87-94. Accessed May 18, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/.44.