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- [4] SIMULTANEOUS DETERMINATION OF CARBOXYL AND CARBONYL GROUPS IN AN OXYCELLULOSE BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE, 1967, (11): : 4023 - &
- [6] DETERMINATION OF ESTERIFICATION DEGREE OF CARBOXYL GROUPS OF PECTIN WITH METHANOL BY MEANS OF INFRARED SPECTROSCOPY CHEMICKE ZVESTI, 1975, 29 (01): : 88 - 91