GOST R 8.942-2017 State system for ensuring the uniformity of measurements. National standard. Standard reference data.Laser Crystals (Potassium rare-earth tungstates). Elasticity constants. Elasto-optic modules for isotropic diffraction
2017GOST R 8.942-2017 State system for ensuring the uniformity of measurements. National standard. Standard reference data.Laser Crystals (Potassium rare-earth tungstates). Elasticity constants. Elasto-optic modules for isotropic diffraction