""Dear Father": B. Piłsudski's Letters from the Petro-Pavlovsky Fortress"(PDF). First published by A. F. Majewicz & T. Wicherkiewicz, eds., Bronisław Piłsudski and Futabatei Shimei – An Excellent Charter in the History of Polish-Japanese Relations (Materials of the Third International Conference on Bronisław Piłsudski and His Scholarly Heritage: Kraków Zakopane 29/8 – 7 /9 1999; Linguistic and Oriental Studies from Poznań, Monograph Supplement 7), pp. 21-34, Poznań: Wydawnictwo Naukowe UAM, 2001. November 29, 2003. Archived from the original(PDF) on July 5, 2005. Retrieved 2007-03-05.
""Dear Father": B. Piłsudski's Letters from the Petro-Pavlovsky Fortress"(PDF). First published by A. F. Majewicz & T. Wicherkiewicz, eds., Bronisław Piłsudski and Futabatei Shimei – An Excellent Charter in the History of Polish-Japanese Relations (Materials of the Third International Conference on Bronisław Piłsudski and His Scholarly Heritage: Kraków Zakopane 29/8 – 7 /9 1999; Linguistic and Oriental Studies from Poznań, Monograph Supplement 7), pp. 21-34, Poznań: Wydawnictwo Naukowe UAM, 2001. November 29, 2003. Archived from the original(PDF) on July 5, 2005. Retrieved 2007-03-05.