Editor's Page | 219-220 | |
1. | L. Pápay. Varieties of sulphur in the alginite sequence of Kössen facies from the borehole Rezi Rzt1 (W-Hungary) | 221-231 |
2. | I. Johannes, L. Mölder, L. Tiikma. Test method for the total content of non-volatile phenols in wasterwater | 232-238 |
3. | E. Puura, A. Pihlak. Oxidation of Dictyonema shale in Maardu mining waste dumps | 239-267 |
4. | L. Pets. Probable modes of occurrance of elements in kukersite mineral matter (Summary) | 268-276 |
Review | ||
5. | A. Tasa, O. H. Tuovinen. Biological leaching of shales - a review | 277-294 |
Discussion | ||
6. | I. Öpik. Future of the Estonian oil shale energy sector | 295-301 |
Congratulations | ||
7. | Jüri Kann 60 | 217 |
8. | Young Estonian scientists: E. Puura and S. Veski | 308-309 |
People | ||
9. | Väino Viilup 70 | 303-304 |
Historica | ||
10. | Armin Öpik 100 | 305-307 |
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