Livonský řád: Porovnání verzí

# Urban, William (2005). The Teutonic Knights: A Military History. str 259-273. {{ISBN |1-85367-667-5}}. [http://books.google.com/books?id=zzwXIQAACAAJ&dq].

# Frucht, Richard C. (2005). Eastern Europe: An Introduction to the People, Lands, and Culture. ABC-CLIO. ss. pp.69. {{ISBN |1-57607-800-0}}. [http://books.google.com/books?id=lVBB1a0rC70C&pg=PA69&dq=%22Livonian+order%22&ei=CORZSO-qNZyMjAH29rG1Cw&sig=19vohCih2OzYTuGz2x64UwHxopQ#PPA69,M1]

# Urban, William L (2004). Livonian Crusade. Lithuanian Research and Studies Center. ss. pp. 12,14. {{ISBN |0-929700-45-7}}. [http://books.google.com/books?id=h9BTAAAACAAJ&dq].