Hugo S. Cunningham. «N.I. Yezhov: Biographical Notes» (en anglès). N.I. Yezhov Home Page. [Consulta: 27 abril 2010]. «Yezhov headed the NKVD (secret police) at the height of Stalin's Great Purge (1936-39). Hundreds of thousands were tortured and shot for no rational reason, and millions were sent to die of malnutrition and exposure in Siberian camps.»
express.co.uk
Paul Callan. «Stalin's poison dwarf» (en anglès). Daily Express, 21-06-2008. Arxivat de l'original el 2011-09-13. [Consulta: 27 abril 2010]. «It is estimated that during his reign of terror Yezhov was responsible for seven million arrests, one million executions and the death in prison camps of a further two million people.»
Paul Callan. «Stalin's poison dwarf» (en anglès). Daily Express, 21-06-2008. Arxivat de l'original el 2011-09-13. [Consulta: 27 abril 2010]. «It is estimated that during his reign of terror Yezhov was responsible for seven million arrests, one million executions and the death in prison camps of a further two million people.»
