Grigoryan, A. M., et al. “LASER BEAM REJECTION INVESTIGATION PASSING THROUGH AIR WITH TEMPERATURE GRADIENT USING THE MONITORING AUTOMATED SYSTEM”. Proceedings of the YSU A: Physical and Mathematical Sciences, vol. 38, no. 3 (205), Oct. 2004, pp. 57-64, https://doi.org/10.46991/PYSUA.2004.38.3.057.