State security and mapping in the GDR : map falsification as a consequence of excessive secrecy? : lectures to the conference of the BStU from 8th-9th March 2001 in Berlin / Dagmar Unverhau
Münster : Lit ; London : Global [distributor], 2006. . - xi, 302 p. : ill. (some col.), col. maps ; 24 cm.
(Archiv zur DDR-Staatssicherheit ; 7)
ISBN 3825890392

Niemcy(NRD)-historia po 1949