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2. [Photometric method of determining the admixtures VNII NP-117 and 117/t in the air of mines]. Gorskaia RV, Tsygal'nitskaia ZF. Gig Tr Prof Zabol; 1986 Jan; (1):39-40. PubMed ID: 3957082 [No Abstract] [Full Text] [Related]
4. [A photometric method for measuring the concentration of caustic alkalies in the air]. Putilina ON. Gig Tr Prof Zabol; 1991 Jan; (4):24-6. PubMed ID: 1879751 [Abstract] [Full Text] [Related]