U-boat aces : the story of Wolfgang Luth by Jordan Vause with anecdots that go beyond the imagination of the best Hollywood scenarists like when he's depth charged by four destroyers he spends 21 hours on the bottom of the ocean with a damage list that doesn't end anymore , he surfaces in the night he sees the shadow of a destroyer at 300 m despite that he manages to go back to the port . it seems that the book's available only in english but it's not a complicated english it's easy to read