RACZYK, A.; DOBROWOLSKA-KANIEWSKA, H. Conditions of spatial diversity of service and industry sectors by level of technology on the example of Lower Silesia. Studies of the Industrial Geography Commission of the Polish Geographical Society, [S. l.], v. 13, p. 42–55, 2009. DOI: 10.24917/20801653.13.4. Disponível em: https://prace-kgp.uken.krakow.pl/article/view/479. Acesso em: 21 jun. 2024.