Bessudnova, M. B. The «Russian threat» in the Livonian Order's documentation from the 80s and early 90s of the 15th century Written by Сосницкий Дмитрий Александрович on 19 June 2014.
Lobin, Aleksey Nikolaevich. «Keys to the cities»: the Livonian war as a war of technology Written by Смирнова Светлана Сергеевна on 01 January 2020.
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