Kisiel, R., Kowalewska, A. and Kowalewska, J. (2021) “IMPACT OF IMPLEMENTED INNOVATIONS ON COMPETITIVENESS OF TOURISM COMPANIES IN THE WARMIŃSKO-MAZURSKIE VOIVODESHIP”, Acta Scientiarum Polonorum. Oeconomia, 19(4), pp. 87-94. doi: 10.22630/ASPE.2020.19.4.44.