| Avaa | Mäemets, Aare
| Estonian limnology : a Survey of Trends and Achievements for Presentation to the 18th International Limnological Congress Leningrad, August 1971 | | kirja | vesistötutkimus - vesistöntutkimus | The "Valgus" Publishing House | Tallinn | 1971 | 87 | | | | H-Limnologia |