- russianarchives.com films/fortress-poznan/March, 1945 Poznan city and fortress destroyed by Soviet aviation units (removed from the air).
- deviantart.com cosmata/art/Poznan-Fortress-Poland…Get your fans' support. Fund your creativity by creating subscription tiers. Poznan Fortress, Poland Cosmata on DeviantArthttps...
- fortress-books.com en/catalogue/fortification-in-…...book in the beautiful series of books about fortifications / fortresses (mostly 19th & 20th century) in Poland, all made by Tomasz Kowalski c.s. - Fortress Poznan.
- github.com RanneKapcie/poznanfortressDjango 1.1 application made for exploring Poznan Fortress with ease. Allows user to view military objects which are a part of Poznan Fortress.
- Mamy dla Was wiadomość Właśnie zostały ogłoszone daty XII Dni Twierdzy Poznań | 12th Poznań Fortress Days.
- ebay.ca itm/254765520487Find many great new & used options and get the best deals for Poznań Fortress / Festung Posen / Polish armament in 1939 at the best online prices at eBay!
- skyscrapercity.com threads/fortresses-of-europe.…Poznan Fortress (Twierdza Poznań). There were 2 fortresses built in Poznan (west of Poland). Polygonal Fortress built in years 1828-1869.
- wiki5.ru wiki/Poznań_Fortress
- hmn.wiki tr/Poznań_Fortressİlk tahkimat seti, Fort Winiary (şimdi Cytadela parkı) olarak adlandırılan ana kale de dahil olmak üzere, Poznan'ın merkezi çevresinde sıkı bir savunma halkasıydı .