Michalak, B. 2018. Międzyrzecz Fortified Region (Festungfront Oder-Warthe-Bogen) – in anticipation of adaptations and modernizations. Budownictwo i Architektura. 17, 1 (Apr. 2018), 021–028. DOI:https://doi.org/10.24358/Bud-Arch_18_171_03.