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- [5] DIMENSIONAL MEASUREMENT WITH HELIUM-NEON LASERS ELECTRO-OPTICAL SYSTEMS DESIGN, 1982, 14 (10): : 21 - &
- [8] STUDY OF DIVERGENCE OF RADIATION OF HELIUM-NEON LASERS OPTICS AND SPECTROSCOPY-USSR, 1967, 22 (06): : 520 - &
- [10] HAZARD CONTROL FOR HELIUM-NEON GAS LASERS BRITISH JOURNAL OF RADIOLOGY, 1970, 43 (516): : 909 - &