Холодный, В. Ю., and А. Ф. Саленко. “The Water Jet Guided Laser Method in Punching Honeycomb Cores for Aerospace Sandwich Panels”. Eastern-European Journal of Enterprise Technologies, vol. 1, no. 5(79), Feb. 2016, pp. 19-30, doi:10.15587/1729-4061.2016.59870.