In an interview on Echo Moskvy radio on September 30, 2012, Andrei Dementyev said that he had not signed the lette.[1]
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In an interview with Nezavisimaya Gazeta published on 5 October 1996, he characterized his signing of the letter as "stupidity". – Дж. Кьеза. «Прощай, Россия!»(in Russian)