WOŁOSZYN , Andrzej; RATAJCZAK , Karolina; STANISŁAWSKA, Joanna. Expenditures on Hotel and Catering Services in Polish Households and its Determinants. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 6, n. 10, p. 93–110, 2018. DOI: 10.18559/SOEP.2018.10.6. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3872. Acesso em: 3 sep. 2026.