| Avaa | Segerstråle, Sven G.
| Om the Immigration of the Glacial Relicts of North Europe, with Remarks on theit Prehistory | | sarjajulkaisu | Eurooppa, reliktilajit | Institute of Marine Rescarch | Helsingfors | 1957 | 117 | | Societas Scientiarum Fennica Commetatione Biologigea XLI 16 | | I-Tutkimus |