STELMACH , Paweł. Spa Services State Distribution and Spa Specialization in Małopolskie Communes. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 6, n. 10, p. 166–187, 2018. DOI: 10.18559/SOEP.2018.10.11. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3877. Acesso em: 3 sep. 2026.