| by Ekman, Per-Olof (Sea front, events in the war at sea in the northeastern ocean 1941-44) Sjökrigshändelser i Norra-Östersjöområdet 1941-44 1981, Schildt, Helsinki ISBN 82209083 240 pages |
Translations of this title include:
| by Ekman, Per-Olof (Seafront) 1983, WSOY, Porvoo ISBN 9510119938 313 pages, photos, maps | |
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