The following lecture notes are available for download in book form:

• Digitale Bildcodierung (4MB)
• Digitale Kommunikationstechnik (6MB)
• Foundations and Applications of Cryptology (3MB)
• Graphen, Algorithmen und Netze (4MB)
• Internet Techniques (3MB)
• Kommunikationsnetze und -protokolle (8MB)
• Network Security (10MB)