Idczak, Adam Piotr. “Sentiment Classification of Bank Clients’ Reviews Written in the Polish Language”. Acta Universitatis Lodziensis. Folia Oeconomica 2, no. 353 (June 30, 2021): 43–56. Accessed April 25, 2024. https://czasopisma.uni.lodz.pl/foe/article/view/9076.