VIKAINIS, Roberts; TALAPINS, Sergejs; MATVEJEVS, Romans. PRESENCE DETECTION SYSTEMS - EFFICIENCY OF USE, BEST PRACTICE. BORDER SECURITY AND MANAGEMENT, Rezekne, Latvia, v. 4, n. 9, p. 135–143, 2023. DOI: 10.17770/bsm.v4i9.7039. Disponível em: https://journals.rta.lv/index.php/BSM/article/view/7039.. Acesso em: 22 dec. 2024.