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Quantitative determination of thioformamideA. K. Kaz'mina; V. I. Shpakovich · 1975
Quantitative determination of isomeric intermediates of riboflavin synthesis, 3, 4-xylyl-6-phenylazo-and 3, 4-xylyl-2-phenylazo-d-ribitylamines, in industrial samplesA. K. Kaz'mina; V. I. Shpakovich · 1973