Getsov, P. ., and S. . Stoyanov. “METHODS FOR ESTIMATING THE INTERNAL NOISES IN AUTO COLLIMATING DEVICES: METHODS FOR ESTIMATING THE INTERNAL NOISES IN AUTO COLLIMATING DEVICES”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH, vol. 18, no. 1, Mar. 2023, pp. 23-27, doi:10.46687/jsar.v18i1.276.