Zlověstné oceány 5. - Německá ponorková válka 1917-1918 – Hakvoort Emmerich (2014)

The final part of the most comprehensive history of the deployment of German submarines during World War I on the Czech book market! The publication by Dutch naval historian Emmerich Hakvoort captures the combat successes of the greatest submarine aces, top-secret submarine operations, and the worst tragedies associated with the attacks of the feared U-boats. The publication also references the participation of Czech submarine commanders fighting on submarines of the Austro-Hungarian Navy.