KAMPARS, Janis. NEW GENERATION ENTERPRISE GEOGRAPHIC INFORMATION SYSTEMS. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 235–240, 2015. DOI: 10.17770/etr2009vol1.1098. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/1098.. Acesso em: 13 may. 2024.