Främmande ubåt sänks på svenskt vatten

By Ellsén, Jarl and Westermark, Hans
(A foreign submarine sinks in Swedish waters)
Ehrenblad Editions AB, Box 6004, S-181 06 LIDINGÖ, SWEDEN
ISBN 9187026546
book is in Swedish language

Descripton: About U-3503 and Hans Westermark (then a young officer on the Swedish destroyer Stockholm) and how he took part in this situation, what then happened to the crew and how the submarine was raised and how it influenced later Swedish submarine designs.