I.D. Spassky

Signed personalia

1. S.G. Garanin, R.I. Il’kaev, V.E. Kostyukov et al “In memory of Yurii Alekseevich Trutnev” 65 209–210 (2022)
2. S.S. Gershtein, S.V. Ivanov, R.I. Il’kaev et al “Yurii Alekseevich Trutnev (on his 90th birthday)” 60 1302–1303 (2017)