ELEMENTAL COMPOSITION OF HUMIC AND FULVIC ACIDS IN THE EPIPEDON OF SOME ESTONIAN SOILS; pp. 131–144

PHYSICAL AND CHEMICAL PROPERTIES OF IONIC LIQUIDS BASED ON THE DIALKYLIMIDAZOLIUM CATION; pp. 145–155

POLAROGRAPHY AND STRIPPING VOLTAMMETRY OF LEAD–POLYCARBOXYLATE COMPLEXES ON DROPPING MERCURY AND ROTATING DISC ELECTRODES; pp. 156–167

CATALYTIC FILTRATION FOR THE IMPROVEMENT OF DRINKING WATER QUALITY; pp. 168–179