On Representativeness of Internet Data Sources for Real Estate Market in Poland. Austrian Journal of Statistics, [S. l.], v. 44, n. 2, p. 45–57, 2015. DOI: 10.17713/ajs.v44i2.79. Disponível em: https://www.ajs.or.at/index.php/ajs/article/view/vol44-2-4. Acesso em: 3 may. 2026.