Festung Sonderburg-Düppel
Subtitle: den glemte tyske fæstning ved Sønderborg
By: af Ole Andersen
Series: Dybbøl skrifter -- 1
Publisher: Historiecenter Dybbøl Banke
Published: 1993
Place of publication: Sønderborg
Language: dan
Number of pages: 70
Subjects: Fortification; History; Military History
Notes: Includes bibliographical references (p. 63).