1995 |
Digital vector data, German authoritative topographic cartographical information system (ATKIS; 1:25.000), German and Czech Survey Maps (Topographic Map 1:10.000 and 1:25.000) |
1940 |
Survey Maps (Messtischblätter; 1:25.000), Map of the German Reich (1:100.000) |
1900 |
Survey Maps (Messtischblätter; 1:25.000), Map of the German Reich (1:100.000) |
There are adequate historical maps available for the other project areas, like the Military Survey Maps of Austria-Hungary, Prussian Survey Maps and other national topographic maps.