TYMCHUK, V. Y.; Тrevogo I. S. The ways of development of geographic information systems for military purposes. Military Technical Collection, [S. l.], n. 3, p. 33–40, 2010. DOI: 10.33577/2312-4458.3.2010.33-40. Disponível em: http://vtz.asv.gov.ua/article/view/175247. Acesso em: 9 mar. 2022.