LAZOV, Lyubomir; TEIRUMNIEKS, Edmunds; ANGELOV, Nikolay; TEIRUMNIEKA, Erika. METHODOLOGY FOR AUTOMATIC DETERMINATION OF CONTRAST OF LASER MARKING FOR DIFFERENT MATERIALS. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 3, p. 134–136, 2019. DOI: 10.17770/etr2019vol3.4143. Disponível em: https://journals.rta.lv/index.php/ETR/article/view/4143.. Acesso em: 2 may. 2024.