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- [5] SPECTROPHOTOMETRIC DETERMINATION OF TUNGSTEN WITH SALICYLIC-ACID FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1978, 290 (01): : 47 - 47
- [6] SPECTROPHOTOMETRIC DETERMINATION OF TITANIUM WITH SALICYLIC-ACID FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1978, 292 (04): : 299 - 299
- [7] NEW SPECTROPHOTOMETRIC DETERMINATION METHOD OF SALICYLIC-ACID REVISTA DE CHIMIE, 1978, 29 (08): : 780 - 780