KIRILLOVA, Olga; MARKOV, Alexandr. DESIGN AND STUDY OF TIME RELAYS. HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, Rezekne, Latvia, n. 21, p. 140–142, 2017. DOI: 10.17770/het2017.21.3596. Disponível em: https://journals.rta.lv/index.php/HET/article/view/3596.. Acesso em: 4 may. 2024.