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- [5] The exact determination of the equivalence, point in potentiometric titrations RECUEIL DES TRAVAUX CHIMIQUES DES PAYS-BAS, 1928, 47 : 397 - 400
- [9] POTENTIOMETRIC TITRATION OF FULVIC ACID - EQUIVALENCE POINT CALCULATIONS AND ACIDIC FUNCTIONAL GROUPS CANADIAN JOURNAL OF CHEMISTRY, 1972, 50 (16): : 2680 - &