Authors: PETS L HALDNA U

Citation: L. Pets et U. Haldna, MICROELEMENTS IN ESTONIAN AND GREEN RIVER (USA) OIL SHALES - A QUANTITATIVE COMPARISON, Gorucie slancy, 12(3), 1995, pp. 239-245

Authors: HALDNA U PENTCHUK J RIGHEZZA M CHRETIEN JR

Citation: U. Haldna et al., FACTOR-ANALYSIS IN ION CHROMATOGRAPHY OF CARBOXYLATE IONS, Journal of chromatography, 670(1-2), 1994, pp. 51-58

Authors: KALJURAND M URBAS E HALDNA U

Citation: M. Kaljurand et al., IMPROVEMENT OF THE PERFORMANCE OF SINGLE-COLUMN ION CHROMATOGRAPHY BYCOMPUTERIZED DETECTOR SIGNAL-PROCESSING AND CORRELATION CHROMATOGRAPHY, Journal of chromatography, 660(1-2), 1994, pp. 147-152

Authors: HALDNA U LINASK K KUURA H KUDRYASHOVA M

Citation: U. Haldna et al., A C-13 NMR-STUDY OF THE PROTONATION OF 3,5-DIHYDROXYBENZOIC ACID IN AQUEOUS SULFURIC-ACID, Mendeleev communications, (1), 1994, pp. 22-23

Authors: HALDNA U GREBENKOVA M

Citation: U. Haldna et M. Grebenkova, EVALUATION OF DIFFERENT FACTOR ANALYTICAL METHODS FOR ESTIMATION OF PKBH-HYDROXYBENZOIC ACID( AND SOLVATION PARAMETER VALUES OF 2), Computers & chemistry, 17(3), 1993, pp. 241-243