1.
Demel B. The policy of the Livonian branch of the Teutonic Order towards the Holy Roman Empire in the years 1521 to 1561/62. OM [Internet]. 2016 May 10 [cited 2024 May 4];20:145-72. Available from: https://apcz.umk.pl/OM/article/view/OM.2015.007