Reserves for waterfowl and migrant birds of national importance (WV) Friday October 27th, 2023 / Luca Gaia / No Comments
Historical population development of Swiss municipalities (1200-1850) Wednesday March 15th, 2023 / adsadmin / No Comments
Glacier situation since the 19th century (1850/1973/2010/2016) Tuesday February 28th, 2023 / adsadmin / No Comments
Fortresses and castles in Switzerland, by category Thursday February 9th, 2023 / adsadmin / No Comments
Structure of the Swiss Confederacy in the 18th century Thursday February 9th, 2023 / adsadmin / No Comments
