1. THE POLLUTION SOURCE AND POLLUTANTS FROM THE TÂRNAVA MICĂ BASIN. Authors: MELINDA VIGH.2. THE CHEMICAL COMPOSITIONS OF RIVERS FROM THE TÂRNAVA BASIN. Authors: MELINDA VIGH, V. SOROCOVSCHI.3. THE REGIME OF OXYGEN AND NUTRIENTS IN ST. ANA LAKE. Authors: MELINDA VIGH.4. THE QUANTITATIVE AND QUALITATIVE PARAMETERS OF THE BODOC SPRINGS. Authors: MELINDA VIGH.