Manual on Danube Navigation
The "Manual on Danube Navigation" (4th edition) provides a comprehensive overview of Danube navigation and the Danube as a waterway. It is available in German and English and can be obtained free of charge both digitally as .pdf-file and physically as a book.
Practical Manual on border controls along the Danube and its navigable tributaries
The "Practical Manual on border controls along the Danube and its navigable tributaries" (3rd edition) provides a comprehensive overview of border controls in the individual Danube riparian states (procedure, authorities involved, border control forms required, border control points, contacts). It is available in English and can be downloaded as .pdf-file.
