| by Forsén, Björn and Forsén, Annette (Germany and Finland: Secret U-boat development) 1999, Soderstrom, Helsinki ISBN 9515217946 Paperback, 335 pages This book covers the secret development of German submarines in Finland after World War I. |
Translations of this title include:
| by Forsén, Björn and Forsén, Annette (Germany's and Finland's secret cooperation in the development of U-boats) 1999, WSOY, Helsinki ISBN 951024029X Hardcover, 330 pages, 56 photos This book covers the secret development of German submarines in Finland after World War I. | |
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