Coba jelasin Catatan dari Adolph Joffe dong

Joffe, Nadezhda: Back in Time: My Life, My Fate, My Epoch. Frederic S. Choate, trans. Oak Park, MI: Labor Publications, 1995.

Volobuev, Pavel Vasil'evich (ed.), Политические деятели России 1917: Биографический словарь. (Russian Politicians, 1917: A Biographical Dictionary). Moscow, Bol'shaia Rossiiskaia Entsiklopediia, 1993.

Zalesskii, Konstantin Aleksandrovich, Империя Сталина. Биографический энциклопедический словарь (Stalin's Empire: A Biographical Encyclopedic Dictionary). Moscow, Veche, 2000.