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International Conference on Number Theory in Moscow
USSR. Moscow. September 14, 1971. President of the USSR Academy of Sciences, mathematician Mstislav Vsevolodovich Keldysh (second from left in the background) during the opening ceremony of the International Conference on Number Theory at the USSR Academy of Sciences. Valentin Cheredintsev/TASS
| Location: | USSR, Moscow |
| Photo: | №157141 |
| Date of shooting: | 09.14.1971 |
| Authors: | |