Hayrapetyan, Yegisabet Hakob, and Stepan Karen Petrosyan. “Construction Features of The High-Precision Laser Rangefinder Light Modulator”. Journal of Architectural and Engineering Research 1, no. 1 (June 25, 2021): 26–31. Accessed June 11, 2023. https://jaer.nuaca.am/index.php/jaer/article/view/5.