"Stalin threatened to produce another woman who would swear that she, not Krupskaya, was Lenin's true wife if she dared to publish Lenin's "Last testament". Noonan, Norma C.; Nechemias, Carol R.. Encyclopedia of Russian Women's Movements (en). Greenwood Publishing Group, 30 September 2001 — 150-bet. ISBN 978-0-313-30438-5.