Ambrosia Publication: <<Die >> Landesbefestigung ...
Title:   <> Landesbefestigung in den Balkanstaaten nach den Quellen kurz dargestellt
Author:   Reuleaux
Publisher:   Berlin: [s.n.],
Date:   1912
Format:   p.;
Language:   ger
Call Number:   EQS 451 (Gennadius Library)
Ambrosia:   http://ambrosia.ascsa.edu.gr:8991/F/?func=item-global&doc_library=BBG01&doc_number=000066906