VOLZ, Daniel; VIEHRIG, Kathrin; SIEGMUND, Alexander. Information Retrieval with the Help of Geographic Information Systems – Key Competency for Modern Geo-Communication. Journal of Geography Education, [S. l.], v. 38, n. 2, p. 102–108, 2010. DOI: 10.18452/25531. Disponível em: https://zgd-journal.de/index.php/zgd/article/view/171. Acesso em: 2 apr. 2026.