Lazov L, Teirumnieks E, Angelov N, Teirumnieka E. METHODOLOGY FOR AUTOMATIC DETERMINATION OF CONTRAST OF LASER MARKING FOR DIFFERENT MATERIALS. ETR [Internet]. 2019 Jun. 20 [cited 2024 Nov. 23];3:134-6. Available from: https://journals.ru.lv/index.php/ETR/article/view/4143