| author | date | title | journal / publication | Gislen T, Brinck P | 1950 | Subterranean waters on Gotland with special regard to the Lummelunda. current II. Environmental conditions, plant and animal life, immigration. | Lunds Univ Årasskrift, N. F. avd. 2, 40, N:o 6, 81 p. = K. Fysiogr. Sällsk Handl. N. F. 61, N:o 6. |
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