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Jerzy J. Lerski, A Polish Chapter of the Russo-Japanese War / Transactions of the Asiatic Society of Japan. Vol. 7. 1959. P. 69-97. William Copeland, The Uneasy Alliance: Collaboration between the Finnish Opposition and the Russian Underground, 1899-1904. Helsinki, 1973. P. 142-46. Alvin M. Fountain II. Roman Dmowski: Party, Tactics, Ideology 1895-1907. New York, 1980. P. 80-121.